We need to make sure the scope is not too large for our group to work on. Working on too large a scope can tempt us to concentrate effort on previous and subsequent operations, rather than the narrower focus area that this team was specifically selected
At the same time, we need to make sure that our scope is not too narrow. It should be broad enough to include both our �supplier� and our �customer� so that their input in the process can help us arrive at the best overall decisions coming out of our wor