In the current state of the NBA, you can't win consistently without team chemistry and solid performances across the board. However, you also can't win consistently without a star to lead your team. As well as the 2012-2013 New York Knicks have played, their star, Carmelo Anthony, is still the main reason the team is the last undefeated franchise in the league.
In the four wins, Anthony has 27.3 points per game to add to his 7.2 rebounds and 1.2 blocks. Even more promising, all of this is coming from a 0.44 shooting percentage. Even more promising, Melo has shown defensive intensity not witnessed in a long time and is making big plays on both ends of the floor.
So, it has certainly been a positive start for New York and their star, but the work is far from over. Carmelo still has areas on which he can improve, and hence, improve his squad.