My solution to this: research. When I don't know how long something will take, I go find the basic ingredients, talk to people with experience and get back to

My solution to this: research. When I don't know how long something will take, I go find the basic ingredients, talk to people with experience and get back to management in an hour. I find it's not necessary to push back like that on every project, and the more discovery about these things you do, the easier it gets.