Most owners try to fix thin jobs by raising price. The lever is usually crew-days.
Same gross profit, half the days on site — you doubled GPPCD without changing the ticket. Same ticket, twice the days — you halved it.
When qualified labor is the binding constraint, speed is not a production nicety. It is the profit strategy.
The painful absolute: some jobs look fine on margin percent and lose on days. Those are the ones that tie up the company even when paper looks good.