Manager: We (meaning you) need to do task A. How long will it take?
Me: Task A will take X days to do.
Manager: That seems awful long.
Me: How long do you think it should take?
Manager: It surely could not take any longer than Y days.
Me: Ok, it seems you have an answer to your question then.
Later:
Manager: It’s been Y days, why isn’t task A done yet?
Fun fact, you can play tough too.
It’s surprisingly effective, especially with a bit of seniority.
Regardless of how effective it is at managing expectations, my reality is:
Mgt: We need A within Y days.
Stf: A will take X (>>Y) days, A/2 can be ready in Y days.
Mgt: O.K., give us A/2 in Y days.
Y/2 days elapses.
Mgt: In addition to A/2, please add B, C and D to the deliverable.
Stf: You realize, that’s going to take an extra 2X days to deliver.
Mgt: yes, but we absolutely need B. C and D, whatever it takes, as soon as possible, don’t waste time releasing A/2, bundle them all together for efficiency.
Stf: Coming up.
3X/2 days elapse.
Mgt: you know B, C, and D that we asked for? Actually, what we need are D, E and F.
Stf: well, we’ve finished A/2, B and half of C. When do you need D, E and F.
Mgt: ASAP, put C on the shelf.
X more days elapse.
Stf: here’s A/2, B and D, how do they look?
Mgt: You know, the full A would be better… but E and G are our absolute top priorities…
I like “Y days? How are you doing it so it takes less than X?”
Oh nice one.
You can also add another layer by adding “you know that [infrastructure requirement] from [notoriously uncooperative infrastructure team] is gonna take at least Z days right?”, and if it isn’t enough, go for the kill shot “I’m gonna start writing the architecture principles this sprint, getting back to you as soon as they are cleared by [notoriously picky and detail obsessive software architect].”.