its more than that. there is a loose correspondence between plan and work. so changes in plans can often be projected onto changes in work. the same goes for expectations and dependencies.
the other thing about the plan is that it attempts to capture what completion might look like. where i come from, the things software developers do right before releasing code look very different than the things they do when they are starting a new project. the plan can allow you to try to do some orchestration, ensure minimum quality bars are met, etc.
having a fuzzy map of the future that you're constantly having to correct sucks. having no map at all leads to the kind of carpe diem development organizations that never seem to finish anything.
the other thing about the plan is that it attempts to capture what completion might look like. where i come from, the things software developers do right before releasing code look very different than the things they do when they are starting a new project. the plan can allow you to try to do some orchestration, ensure minimum quality bars are met, etc.
having a fuzzy map of the future that you're constantly having to correct sucks. having no map at all leads to the kind of carpe diem development organizations that never seem to finish anything.