Most trials measure nothing
The usual pattern is that a contractor starts, everything looks better for a fortnight because the building has just been reset, and then attention drifts. At the review nobody has walked the building deliberately, nobody has recorded a condition, and the discussion turns on whether anyone has complained. A trial run that way tells the committee only whether the scheme is unusually tolerant. It tells them almost nothing about the contractor.
Setting even a very light measure changes it. Two or three areas the committee genuinely cares about, looked at on a stated date by a named person, produces a defensible view. It takes twenty minutes in total and it converts a subjective discussion into a short factual one. The scheme also ends up with a record that survives the committee that made the decision. That record outlives the people who made the decision.
