Without Faulk and Warner Holt has still been a constant threat and pro Bowler. Bruce slowed down the last couple years and Holt still produced. The Line went to hell and Holt still produced. Thats like saying Rice would not have been that great without Montanna, Taylor, and Craig. While the other playmakers help, Holt still consistantly shreads double teams on his own. He is a feature back and one of the greatest ever.
Flip side to the argument. Holt amassed terrific stats based at least in part on the weapons around him. Would holt had been as great a player without warner, bulger, faulk, bruce and jackson around him? Put holt on a team without all the other weapons and i doubt he is anywhere near as effective.