The consultant we promoted into a manager, and what it cost both of us

He was the best consultant we had. Clients asked for him by name, he wrote proposals that won without a second meeting, and he had the rare ability to tell a client they were wrong in a way that made them grateful. So when the team hit eleven people and it became obvious somebody had to look after the four newest, we promoted him. Head of Delivery. A £9,000 rise, a title, and an announcement everyone applauded.

Fourteen months later he resigned. In the exit conversation he said something I have thought about ever since: "You took the only part of the job I was good at, and gave me the part I'd been avoiding my whole career."

We had not rewarded him. We had removed him.

The arithmetic nobody did

Here is what we should have modelled before the announcement, and it takes about ten minutes.

He billed at £95 an hour and delivered roughly 1,150 chargeable hours a year, so around £109,000 of billed revenue. The management role took him to about 500 chargeable hours, because line-managing four people, sitting in a weekly leadership meeting and running the resourcing plan does not fit round the edges of a full delivery load. It never does.

That is 650 hours moved out of delivery, or roughly £62,000 of billed capacity gone, replaced by £9,000 of additional salary cost. For that trade to make sense, the management he provided had to be worth more than £71,000 a year — in fewer mistakes by the four juniors, in faster ramp-up, in retention, in work he unlocked by being free to think.

It could have been. Good management genuinely is worth that in a business of that size; a junior who becomes productive three months earlier is worth tens of thousands on their own. But we never wrote the number down, so we never asked whether the person we had chosen was likely to produce it, and we never measured whether he had.

The promotion cost us £62,000 of billed capacity a year. Nobody in the room said a number out loud, because the promotion was a reward and pricing a reward feels ungracious.

Management is a different job, not a senior version of the same one

The thing that broke was not capability. He was intelligent, organised and conscientious, and he did the job properly in the sense that the resourcing plan was accurate and the one-to-ones happened.

What broke was that the work he had loved — the hard client problem, the two-hour stretch of concentration, being visibly excellent at something — was now the thing he did at nine at night after everyone else had gone. Meanwhile the parts of management that provide the compensating satisfaction, the slow pleasure of watching somebody get better, were invisible to him because he had never been taught to look for them.

The failure mode is well known and small firms walk into it anyway, because in a business of eleven people there is only one ladder. The reward for being excellent at the work is the removal of the work. And the person is rarely asked whether they want it, because refusing a promotion in a small team feels like refusing to help.

There is a version of the same mistake on the money side. We priced the rise as a reward for past performance rather than as the rate for a different job, which meant the £9,000 was simultaneously too much to reverse painlessly and too little to make the new job attractive on its own terms.

The conversation we should have had first

It is one meeting, and there are four questions in it. We now run this before offering anyone a management role, and it takes about forty minutes.

Which parts of your week would you keep if you could keep only three? If none of the three involve other people, you have your answer and you have it before either of you is committed.

Describe the last time you helped someone else get better at something. Not a mentoring anecdote from a CV. A specific, recent instance. People who will enjoy managing usually have several and tell them with energy.

How would you feel about your billing dropping by half? For a lot of specialists the utilisation figure is their scoreboard, and watching it fall is genuinely distressing regardless of what the salary does.

What would you want to still be doing in two years? If the honest answer is the delivery work, then the honest offer is not a management job.

Two of the four people we have asked since said no, and both are still with us. One of them now runs our largest account as its principal consultant and earns more than the manager who resources her.

The two ladders we run now

The fix is structural rather than personal, and it costs nothing but a conversation and a pay-band chart.

There are two tracks. The principal track goes consultant, senior consultant, principal, with the work staying client-facing all the way up and the seniority expressed as harder problems, larger accounts, and authority over method. The manager track goes consultant, team lead, head of delivery, with people, resourcing and quality as the actual job description.

The two things that make it work are not the diagram. First, the bands overlap deliberately: a principal at the top of their band earns more than a team lead at the bottom of theirs, so choosing the specialist route is not a decision to earn less. Second, moving between tracks is normal and explicitly reversible, and we say so out loud when we make the offer — a six-month review is written into the role, framed as a genuine two-way check rather than a probation.

That reversibility clause matters more than any of it. The reason people stay in management jobs they hate in small firms is that stepping back feels like public failure. Naming the review date in advance turns "I want to go back to delivery" from a confession into a scheduled agenda item.

Do it carefully, because a demotion is a contract change

One practical warning, because this is where a well-meant correction becomes a legal problem.

Moving somebody out of a management role is a change to their duties and usually to their pay, and both are contractual terms. Imposing either unilaterally risks a fundamental breach of contract and a resignation that becomes a constructive dismissal claim — the sequence set out in the resignation that turned into a constructive dismissal claim. The safe route is agreement, recorded in writing, ideally under a review clause both parties signed up to when the role was created.

Two further details worth knowing. From 1 January 2027 the qualifying period for ordinary unfair dismissal falls from two years to six months, so a manager appointed and unwound inside eighteen months will have the service to bring a claim where they previously might not. And where a step back involves reducing pay, get written agreement before the change takes effect, because a unilateral cut is also an unlawful deduction from wages — the same principle covered in what you can legally deduct from an employee's pay.

None of that makes the correction impossible. It makes it a documented conversation rather than an announcement.

What I would tell my past self

Write the capacity number down before you make the offer. £62,000 of billed work is a real cost and it deserves a real justification, not applause in a team meeting.

Ask the four questions, and believe the answers. Somebody telling you they would rather stay on the tools is not being modest.

Build the second ladder before you need it, because inventing a principal track in the week somebody threatens to leave looks exactly like what it is.

And accept the underlying trade. In a firm of eleven people you cannot have your best deliverer also be your manager, and pretending otherwise costs you one of the two — usually both. We got him back, eventually, as a contractor on our two hardest accounts. He is happier. So, frankly, are the four people who now report to somebody who actually wanted the job.

Common questions

How do you tell whether someone actually wants to manage people?

Ask before you offer, not after. Four questions do most of the work: which three parts of your week would you keep if you could keep only three; describe the last specific time you helped somebody get better at something; how would you feel about your billable hours halving; and what do you want to be doing in two years. People who will enjoy managing answer the second question with energy and detail. If none of their three favourite activities involve other people, the honest conclusion is that a management role is a punishment dressed as a reward, however senior the title sounds.

What does promoting a fee-earner into management actually cost?

Model it as lost billed capacity against added salary. A consultant billing 1,150 hours a year at £95 generates roughly £109,000. Line-managing a small team, running resourcing and attending leadership meetings typically takes them to around 500 chargeable hours, so about 650 hours or £62,000 of capacity moves out of delivery. If the pay rise is £9,000, the management they provide has to be worth more than £71,000 a year in faster junior ramp-up, fewer errors, better retention and work unlocked. That can easily be true — but write the number down before the promotion, not after.

Can you move someone back out of a management role?

Yes, but treat it as a contract variation rather than an announcement. Duties and pay are contractual terms, and imposing a change to either unilaterally risks a fundamental breach and a constructive dismissal claim. The clean route is written agreement, ideally under a review clause both parties accepted when the role was created — a stated six-month check makes stepping back a scheduled conversation rather than a public failure. From 1 January 2027 the qualifying period for ordinary unfair dismissal drops to six months, so a manager appointed and unwound within eighteen months will usually have the service to claim.

Should a senior specialist be able to earn as much as a manager?

If you want a specialist track that anyone takes seriously, yes — the pay bands have to overlap. A principal consultant at the top of their band should earn more than a team lead at the bottom of theirs, otherwise the message is that management is the only route to money and every ambitious specialist will apply for a job they do not want. Overlapping bands cost nothing to design and remove the main reason people accept management roles they are unsuited to. The seniority on the specialist track is expressed as harder problems, larger accounts and authority over method.

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