Roid Rage?

A clearly agitated Peter Gammons appeared on the Mike and Mike show on ESPN Radio this morning to talk about steroids and baseball. During the course of discussing Jose Canseco's book, Gammons may have inadvertently implicated Mark McGwire in the steroid scandal. Gammons said that he doubted that Canseco played a role in getting Giambi to use steroids, because Canseco and McGwire were not close at all during Jose's 2nd stint with the team, and Giambi followed McGwire around like a puppy when they played together. Now, knowing for a fact that Giambi used steroids and HGH, what would you infer from that comments?