100%. I work in consulting, and we spend a lot of time trying to find ways to do this better. But no amount of clearly documented prerequisites, checkpoint meet

100%. I work in consulting, and we spend a lot of time trying to find ways to do this better. But no amount of clearly documented prerequisites, checkpoint meetings to try to make sure they'll be ready before kickoff, or anything else consistently works. In my experience, we often lose 1+ week due to the customer not being ready even though they have acknowledged the prerequisites. I think it comes down to priorities, and the fire in front of you always has higher priority. That means that onboarding and prereqs are not the priority until the consultants show up on-site and you are paying for them to find other things to do while waiting for the real project to start. Then it is a fire, and everyone starts moving with purpose.