If a baseball team doesn’t have anyone in left field, they will consistently lose. Sure, they may handle long balls to center exceptionally, they may pitch great games, handle everything in the infield just fine. But if no one is covering left field, those fly balls will go unfielded and end up giving a significant advantage to the other team.

In the realm of technology builds, timelines are most helpful if we can all admit that they are, by nature, an initial best guess.

It’s true, changing your mind might alter budget and timelines. It may vex project managers. But the truth is that understanding evolves, and changing your mind based on the latest landscape is not a sign of negligence. It’s a sign of careful attention and thoughtfulness. 

If you want your product to succeed, don't think the road to that is by putting every bell or whistle you could imagine. Think first of making sure the people using your product are helped every step of the way to remove roadblocks to their use. No more arms crossed disappointed looks when they're not doing it right, despite "having got the training, twice!" We have to move to a support mentality that recognizes that if the product isn't used, it's useless.