Meeting Your Deadlines

Missed deadlines are usually not a time problem. They are an estimating problem, and estimating can be fixed.

People who miss deadlines are rarely lazy. Most of them worked hard and simply believed, honestly, that it would take less time than it did.
The planning fallacy is universal
Asked how long something will take, people systematically underestimate, and knowing about the tendency does not correct it. Experienced professionals do it about as much as anyone else.
The reason is that we estimate from an imagined smooth run. No interruptions, no waiting on someone, nothing turning out more complicated than expected. That version has never happened.
Estimate from history, not imagination
The single most effective correction is asking how long the last similar thing took, and using that number instead of your instinct.
People resist because this time feels different. It is not, and the record is more reliable than the feeling.
Break it until the pieces are boring
A large task attracts a vague estimate. Broken into pieces small enough to be dull, the estimates get realistic, and the total is usually considerably larger than the original guess.
That total is the useful number, and it is the one people avoid producing because it is unwelcome.
Add the waiting
Most overruns are not work time. They are the two days waiting for a review, the week waiting for access. Put those in the plan explicitly, because they are the largest single source of slippage.
Renegotiate early or not at all
A deadline flagged as at risk two weeks out is a manageable conversation. The same news on the day is a failure.
Everyone knows this and almost nobody does it, because the early conversation feels like admitting something. It is the cheapest thing you will do all month.

















