Most of the season they played to win. Now, it looks like they are playing to not lose. The difference is subtle, but they seem desperate in a fearful way, which tends to take away the confidence in players and increases anxiety, thus more clanked shots at the end of games. They had been beating teams early, and still had the confidence to close out close games most of the season, but now they look panicked at the end of close games. This will prevent them from breaking the Bulls record (more likely a tie), and hopefully this mentality is gone by the playoffs.