Interim managers and consultants are often treated as interchangeable because both are senior outsiders engaged temporarily on a day rate. They are not interchangeable. The difference is accountability: a consultant is accountable for advice, an interim manager is accountable for the operation.
A consultant is engaged to answer a question. What is driving the margin decline, how should the labour model be restructured, is this portfolio worth keeping. The output is analysis, a recommendation and usually an implementation plan. Responsibility for acting on it stays with the client's management team. That is the right arrangement when management exists, is capable, and simply lacks the specialist insight or the bandwidth to do the analysis.
An interim manager is engaged to hold a position. They have line authority, they sign things off, they manage people, and the results of the period they cover are theirs. That is the right arrangement when management does not exist, has lost credibility, or cannot cope with the scale of what is happening. No amount of advice fixes an operation with nobody running it.
The practical test is simple. Ask what happens the day after the engagement starts. If the answer is that someone begins investigating and will report back, you need a consultant. If the answer is that someone has to open the site, pay the staff, calm the suppliers and make decisions before the end of the day, you need an interim manager.
Cost comparisons tend to mislead. Consultancy day rates are frequently higher, but the engagement is shorter and part-time; interim assignments are full-time and last months, so total spend is often greater. The relevant comparison is not rate against rate, it is cost against the alternative — an unmanaged operation losing value weekly, or a permanent recruitment that takes three months you do not have.
There is also a credibility difference inside the business. Staff distinguish very quickly between a visitor with a notebook and a manager who is on shift with them. In distressed situations, where retention of key people is the main operational risk, that distinction is often decisive.
The two roles can coexist. It is common for a consultant's diagnostic work to identify a need for operational leadership, and for an interim manager to be deployed to execute it. In hospitality in particular the boundary is blurred, which we unpack in hospitality consultancy vs interim management.
If the situation calls for someone to take day-to-day operational responsibility rather than advise, that is what we do — and what an interim manager actually does day to day sets out the work involved.