Not parent, but in every successful project I have been part of, the technical challenges were always a small slice (perhaps less than a quarter) of the main ef

Not parent, but in every successful project I have been part of, the technical challenges were always a small slice (perhaps less than a quarter) of the main effort. Getting organizational approval (which usually boils down to acquiring buy-in from management) and picking the path to progress (with occasional course-correction) are the main contributors to success. This isn't to discount the hard work involved in completing the technical tasks, but commiting _to_ begin something along a certain development vector is, indeed, the hard part.