You can not define being exactly on time.
To manage one must lead. To lead, one must understand the work that he and his people are responsible for
Management's job is to optimize the whole system.
Managers don't like giving appraisals, and employees don't like getting them. Perhaps they're not liked because both parties suspect what the evidence has proved for decades: Traditional performance appraisals don't work.
It only takes a little innovation.
It is wrong to suppose that if you can’t measure it, you can’t manage it – a costly myth