Boston fans certainly felt a bit betrayed, as Allen left the Celtics for the very team that had knocked them out of the playoffs in the two previous years. People understood, however, that the veteran guard simply wanted to give himself the best possible chance to win another championship.
Early in this NBA season, Allen's 18th, it appears that his role in Miami might be a lot more important than people had thought. Through five games, the 37-year-old is averaging more than 28 minutes and over 14 points per contest.
Rather than play the role of the veteran that will ride the bench and hope to come out of it with a ring, Allen looks more like a vital piece of the 2012-13 Miami Heat. Here are three reasons that Allen's arrival in South Beach could be key to the Heat's bid to defend their title.