I've heard a number of different rumors from the media and Yanks fans. They say the following players on the Yanks roster are a possibility:
Nomar at 2B
Varitek at C
Posada traded to Arizona in a deal for Randy Johnson
Pedro Martinez or Carl Pavano
If Giambi comes back 100% (BIG IF) and Nomar is at 2nd, that will be the best infield in baseball (better than Texas and St. Louis), and maybe the best of all time!