If that is the case Nash as a backup for 1 year at a vet min deal would be fantastic. Then the knicks could just draft another guard and hope he pans out. Trading for one is also an option as well.
However to be honest who knows that the Knicks need. Most times that doesn't become until the halfway through the seasons and add in baron and Jefferies (who basketball Gods help me I miss on the roster....) are still injured.
Before this season I would say the knicks needed an improved 3/4 to take those minutes that Billy Walker/Novak currently gets. But who knows. The knicks are going to have to play a good team competitively at full strength (and good coaching) before anyone knows where they really stand and where their needs are.