NEW YORK — Back in November 2007, a displeased David Stern said that the New York Knicks were “not a model of intelligent management.” Back then, Isiah Thomas was running the franchise into the ground and getting his employer, Madison Square Garden, sued in federal court. That was five years ago and since then, Donnie Walsh and Glen Grunwald have both done wonders for the credibility of the general manager’s office over at 2 Penn Plaza. But one thing that forever seems