Schedule says go.
Materials say no.
The silence was painful.
That gap — between what the programme says is executable and what the field can actually build — is where most productivity losses are born.
Not in the schedule.
Not in the design.
In the space between them.
I've watched crews stand idle on billion-dollar projects while someone upstream was still reporting green.
The work was planned.
The resources were mobilised.
The materials weren't there — or already utilised elsewhere.
Execution doesn't fail at the decision point.
It already failed three weeks earlier,
when nobody connected the constraint to the programme.