How can I stop Entropy this time?

Hint 1 of 11:

Go over to Yankee Stadium -- 3D (3,2) -- to figure out what he's up to.

Hint 2 of 11:

He's trying to bring back George Steinbrenner.

Hint 3 of 11:

Maybe you should revive someone else who can put a stop to Steinbrenner.

Hint 4 of 11:

Find a cryonic storage place for a hint.

Hint 5 of 11:

Go to The Vault at NY Uptown (15,5) to look for candidates.

Hint 6 of 11:

Billy Martin might be able to help you, but you have to revive him first.