The NBA is a zero-sum game. For every win a team earns, another takes a loss. For a champion to be crowned, 29 other teams must lose. Every GM has a different way of approaching the game; some are in win-now mode, some stash picks and look to the future, and some are patiently waiting for their blossoming young stars to lead the way. There is no right answer; history has shown us that there is no single guaranteed path to winning a championship.
However, at some point in a GM’s career, whatever strategy he has chosen has to start producing Wins. At some point, your team is good enough, or it’s just pretending (Clippers). At some point, all your high draft picks have to turn into players (76ers). At some point, your #1 picks have to develop into stars (Timberwolves). No matter how clever or innovative a GM is, at the end of the day, the goal isn’t to stash draft picks or assets, the goal is to Win.