A lot of consulting produces a document. A good one, sometimes, full of real analysis and reasonable recommendations. And then someone has to actually go build the thing, usually after the consultant is gone and the momentum from the engagement has already faded.
We build it while we're still there. A process gets written down with an actual owner on the client's team, a piece of software gets configured around how the team really works, or both. Before we leave, someone on the client's side has done it themselves, with us watching to correct it, not explain it after the fact.
The test we hold ourselves to: if nothing is running by the time an engagement ends, we didn't finish the job, regardless of how good the analysis was along the way.