There's a number that doesn't appear on any balance sheet, that has no line of its own in the P&L, and that almost no professional services firm can calculate with precision. It's called rework, and it's eroding profitability from the inside out.
This isn't a hypothesis. It's what we hear, over and over, in conversations with managing directors and partners at consulting firms across the region.
The Problem With No Name (That Everyone Recognizes)
You request a deliverable. It gets done. The client asks for changes. It gets redone. The partner reviews and asks for adjustments. It gets redone again. By the end, what was sold as ten hours turned into eighteen — and no one knows exactly where the difference went.
That's rework. And in most firms, there's no record of how many hours were spent on it.
The team feels it. Managers sense it. Partners see it in the margins that don't close. But no one can point to the exact number, because time was never tracked in a way that made it visible.
How Many Hours Is Your Team Spending Redoing Work That Was Already Done?
Most firms don't know. The ones that measure it don't accept it.
The difference between the two groups isn't size or type of firm. It's visibility. Firms that started tracking hours with enough granularity, that could compare budgeted against actual hours project by project, discovered that rework wasn't an occasional exception. It was structural.
COR recorded a 15% reduction in rework at firms that implemented real-time hour tracking and systematically compared planned vs. executed hours. Not because they changed the quality of their teams, but because they started seeing what had previously been invisible.
Spreadsheets Aren't Enough
The most common process at consulting firms is still manual hour entry in spreadsheets. The problem isn't just that it's time-consuming: it's that the information arrives late, arrives incomplete, and by the time it does, it's no longer useful for real-time decision-making.
By the time a manager can analyze how many hours a project actually took, that project is already over. Or worse, the next one has already been sold under the same flawed assumptions.
Rework thrives in exactly that gap — the space between what was done and what can be demonstrated was done.
What Changes When You Can Measure It
When a firm can see, in real time, the difference between quoted and executed hours by project, at least three things happen:
First, variances are caught while the project is still active, not after it's too late to course-correct.
Second, partners have data for the conversation with the client — to renegotiate a fee, to justify an overrun, or simply to understand why certain projects don't close well.
Third, the firm starts building real intelligence about its own processes: which types of projects tend to go over, at what stages rework appears, and which roles are most involved.
That's not technology for technology's sake. It's professionalizing how you manage.
The First Step Isn't Complicated
You don't need a sophisticated process from day one. The firms that solved this best started simple: log hours in broad phases, compare against what was sold, and move toward greater granularity from there.
Resistance to change is real, and it's legitimate. Consulting teams aren't typically trained to log hours in detail, and changing that habit requires support. But the cost of not doing it isn't neutral either.
Every hour of rework that goes unrecorded is an hour the firm paid for that no client compensated. That has a name: loss.
COR is the operational management platform for professional services firms. It helps teams log hours, measure profitability by project, and anticipate team capacity — with the visibility the business needs to grow without losing margin along the way.
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