A pay rise and a familiar logo explain why someone joins a consultancy. They explain very little about why someone stays five years later, through a bad project, or a stagnant year.

Rate, brand, and benefits set the floor for a hiring decision, but they are not the reason a person keeps declining better offers once already in the building.

Some reasons people stay reflect the quality of the employer: development, exposure to certain types of work, or honesty about where they stand.

Other reasons simply make leaving expensive: a notice period, an unvested bonus, or a visa tied to one employer. Both produce a low attrition number. Only the quality employer produces a workforce that would choose the firm again given a choice.

The Loyalty Illusion

Non-compete clauses and deferred bonuses raise the cost of walking out the door. The Hamilton Project at Brookings has documented a chilling effect from non-competes that holds even when the clause is never enforced, since people restrict their own search on the legal risk alone.

The clearest illustration of what happens once that advantage runs out can be seen in India’s IT services sector, which delivers much of the world’s SAP implementation work.

Attrition at Infosys, Wipro, HCL, and TCS ran between 17 and 28 percent through 2022, and HCL reportedly tried clawing back prepaid retention bonuses from staff who resigned anyway. That kind of lock-in didn’t keep attrition low.

Freelance consultants supply the other half of this picture, and there’s no reason to think SAP specialists are an exception: a 2019 Harvard Business Review study of several hundred independent consultants, against a comparable group of employed consultants, found nine in ten describe the move as one they chose, earning the same or more while working fewer days, which says more about what an employer failed to supply than about independence being inherently better.

The useful test: would a given reason to stay survive a change of employer? A mortgage, a spouse’s job, a visa tied to a sponsor: none of these have anything to do with the firm itself, and none reflect anything the firm actively does to earn the person’s loyalty. A genuine reason to stay does, and once that’s named, the difference is easy to spot.

The Real Mechanism

Organizational psychology has a better model for this than satisfaction or loyalty: job embeddedness.

Defined by Terence Mitchell and colleagues in 2001, it breaks the reasons someone stays into three parts: fit, how well the role matches what a person wants from their career; links, the working relationships built inside the firm; and sacrifice, what would genuinely be lost by leaving.

Sacrifice is where the theory gets interesting, and where its own literature admits an unresolved tension: a pension, a title, or a client relationship built over three years, can be a professional asset earned through good work, or a sunk cost an employer is relying on to keep someone in place.

A 2022 study of several hundred employees found that psychological empowerment had no direct effect on organizational commitment; its entire effect ran through embeddedness, with a strong learning culture working mostly the same way. Development retains people by making them more embedded.

Development That Accumulates

SAP has just rebuilt its own certification program, replacing multiple-choice testing with scenario-based, open-book exams that let candidates use AI tools during the exam itself: which can be interpreted as an admission that the old way of proving knowledge no longer proves much, and that leaves an awkward question for any consultancy whose training hasn’t moved to match.

The distinction that matters for a consultant’s career is between skill that decays and skill that accumulates.

Migration mechanics, the data conversion and custom-code remediation work driving a large share of today’s project volume, has a shelf life tied to the 2027 deadline in most markets, even where individual clients are taking longer: once the wave passes, so does the market’s appetite for it. Architecture judgment and AI-agent governance behave differently, gaining value the longer someone holds them, and they will also define the next wave of SAP projects. 

A consultancy that only routes someone through the migration work is not developing them in a way that lasts beyond the current cycle. A clearer sign of investment is a career structure that lets a specialist go deep in an architecture track without being forced into people management to keep progressing: KPMG’s research on dual career paths found this raises both satisfaction and retention, provided the technical track carries the same standing in the organization as the management one.

Variety and Exposure

Deployment variety as a principle works against a career strategy everyone assumes without checking: more projects is not automatically more variety.

A consultant who spends three years converting brownfield ECC systems to S/4HANA has changed clients five times and gained very little that wasn’t already on their CV. Real variety means a different deployment model or a different industry. There are different approaches to this across the consulting industry more broadly: some firms let consultants choose their own projects from open postings, producing broad exposure automatically; others place people centrally, trading that breadth for predictability.

Exposure to senior clients follows a similarly uneven pattern. One junior consultant, quoted in a Prosple survey of graduate hires, described running two simultaneous projects at the same firm and grade: on one, playing what they called a high value role, on the other, just sending emails, depending entirely on which partner needed help that quarter.

Research published in the Journal of Professions and Organization found senior client relationships inside professional service firms usually pass down through inheritance, junior staff absorbing a retiring partner’s book of business, which favors whoever the partner already resembles, since people build relationships with people like themselves. Building client relationships directly worked out better than inheriting them, especially for the people inheritance tends to leave out.

The Conversation Gap

Gallup’s research on preventable turnover, based on a national US survey, put a number on something most managers suspect but don’t act on: 42 percent of people who quit say their departure could have been prevented, and 45 percent had no real conversation about their satisfaction or their future in the job during their final three months there. McKinsey’s separate research on the same question found a gap between what leaders assume drives departures and what departing employees actually report. Leaders guess that it is pay and workload. Employees report feeling undervalued by their manager and unsure where they stood.

Vague reassurance can be worse than an honest no. A manager who says “keep doing good work and something will come up” sets an expectation with no floor under it, and when that expectation eventually breaks, the employee experiences it as a broken promise rather than a piece of bad news. A manager who says “not this cycle, but here’s what will make it happen” gives someone something to plan around, even when it isn’t what they hoped to hear.

A conversation about someone’s actual trajectory works better kept apart from the performance review, on its own schedule, rather than folded into the anxiety of being assessed.

Advocate, Not Advisor

Mentoring and sponsorship get used interchangeably, and the research says they shouldn’t be.

A 2008 meta-analysis covering more than a hundred studies found mentoring’s effect on someone’s actual career outcomes, promotion and compensation, was small but real. Its effect on how someone feels about their job was measurably larger, though still modest in absolute terms. Advice changes morale more reliably than it changes a career, but it is still valuable for both reasons.

Sponsorship is a different thing: a senior person using their own reputation to get someone into a room, a project, or a shortlist they weren’t otherwise going to reach.

Catalyst’s research found that when women have a sponsor, they get promoted at the same rate as men, closing a gap mentoring alone never closed. A separate, fairly counter-intuitive study found people in informally-formed mentoring relationships did better, on both perceived value and actual pay, than people assigned a mentor through a formal company program. The formal version isn’t obviously the fix most consultancies assume it is: it depends how the mentoring is run, and sponsorship is a separate problem.

The Manager Variable

One of the more carefully built studies in this field, published in the Journal of Political Economy, tracked what happened when employees were reassigned between managers with different people-management scores.

Moving someone from a manager in the bottom ten percent of that measure to one in the top ten percent cut their odds of leaving by roughly sixty percent, and the effect was strongest for the firm’s best performers, not its average ones.

The same study found no relationship between a manager’s people skills and their own technical output. A firm that promotes managers purely on billing performance is, on this evidence, running a system built to lose its best consultants to its own best billers.

Two things make a good manager’s efforts effective. One is workload: someone stretched too thin to absorb what a good manager offers gets none of the benefit of having one. The other is scale. Reporting from inside the Big Four through 2025 described senior staff, including partners, describing the sponsorship they expected once they made partner as still out of reach. Formal programs exist at that size because informal sponsorship stops reaching everyone once headcount gets large enough.

How to Optimize Retention

Everything above points toward a short list of things a consultancy can act on.

Separate the path to management from the path to seniority, so a strong architect doesn’t have to become a mediocre manager to keep earning more.

Treat bench time between projects as a training opportunity rather than pure cost.

Move career conversations onto their own calendar, away from the review cycle, on a schedule that catches a wavering decision before it becomes inevitable.

Make the staffing model’s trade-off between depth and variety an explicit, statable policy rather than something a consultant has to infer from experience.

Select managers, at least partly, on the same people-management measure that predicts retention, rather than purely on billing history.

None of this can be seen clearly in an attrition number, which is the point: a firm needs a way to tell the difference between people staying because they want to and people staying because leaving currently costs more than it’s worth.

The first group is an asset. The second is a group waiting to change employers the moment the market allows it.

What Actually Makes an Employer Hard to Leave

None of the pieces above work alone.

Development, variety, honest conversation, and real sponsorship do the same underlying job: they make someone more embedded, in the sense the research actually means it, earning fit, links, and sacrifice through the work itself rather than through the cost of walking away.

A firm that gets this right doesn’t need to make leaving expensive, because leaving stops looking like the better option.

Consultancies need to understand the point of view of their consultants when considering attrition. 

Three questions cover most of it: has the work changed what the consultant can actually do, effectively boosting their capability and their earning potential; has someone with real standing spoken up on the consultant’s behalf for their professional development; and would their manager tell the truth about where they stand, unprompted, before they had to ask.

Seen through this lens retention becomes an actionable set of practices that consultancies can follow so they keep their most valuable employees.

IgniteSAP works with a number of SAP consultancies on optimizing their talent pipeline, matching practices with consultants who bring the depth a role needs now, and the capacity to grow as part of their organization. If that kind of staffing support would help your practice, contact us on LinkedIn.