Last season, the Knicks' starters logged the most minutes in the NBA and had a net rating of just 3.3 for the year. This year, there is an obvious solution: getting more out of the starting unit.
Admittedly, that sounds obvious and kind of stupid to say. Every team in the league would push the "get more out of our starters button" if it existed. The problem is that it doesn't exist, obviously. Still, in the Knicks case, the solution is fairly obvious: experiment with different units so that they can determine which combination of players maximizes their talent.