If I were Isiah, this is what I would do:
Go find TMac and Shaq and just say:
"Listen you two, here is why you come to the Knicks:
You both already have more money in your lives than you'll ever be able to spend, no one can question that. You two both come here to New York for 2 million each, 1 year, we can negotiate your contracts after the season for more money. With you, Tracy, we have Tim Thomas backing you up, for you, Shaq, Nazr will back you up and he'll back up Kurt Thomas too. No doubt we have a champoinship caliber team. Come, get a ring, be kings of the Big Apple, and the future after that is all up to how it plays."
Okay I know it sounds crazy but it's worth a shot!