Comment by selecsosi

This is why you have to have skin in the game, and a backbone to say no to executives when it compromises delivery if there isn't escalated mediation.

Said another way, I don't say no a lot, I put prioritization up front and tell them that we are sacrificing other deliver items.

That is a decision that an exec can work with, mediate between teams, and builds mutual respect for senior leadership as you don't break promises you've already made, unless there is mutual agreement from the business.