Re: Project manager?
Or maybe they did plan it correctly, but:
Having done so, there is the small matter of the budget allocation. You have in your hand a proposal for a project which will take X months and cost Y, so first on the agenda is off to TPTB to get the budget approved.
1) Twiddle thumbs until next approval board.
2) Get sent away with flea in ear to cut costs / improve payback / add cat pics / whatever.
3) Tweak proposal and twiddle thumbs for another month.
4) Repeat 2 and 3 a couple of times.
Presto. A project that takes X and costs Y with X - n months and Y - ${large_random_number} to do it with.
And TPTB then wonder why every bloody thing is either over time and budget or piggin' unreliable 'cos the testing was skimped.