At the conclusion of most games, the final score dictates how players, parents and coaches feel about the performance of the team and individual players. When the team wins, everybody must have had a good game, and of course, the opposite is also true. Actually, the final score of the game tells us nothing about how individual players performed.
When winning is the primary focus, it results in a cascading series of decisions by coaches that can undermine the players' experience and development. At a minimum, complacency sets in for teams winning consistently, and panic takes over if the scores are disappointing.