I think every team was the same the Yanks just got caught.
Why would the Yankees be the only ones to get caught? The Mitchel report did not focus on just the Yankees. The bottom line is that there are a lot of guys who took drugs in baseball, and the highest concentration of these players was on the Yankees. Yanks fans and New York media like to throw the word "taint" around, well, there is one hell of a stain on their baseball team.
A-rod never would have been outed if he was not such a douche. His own peers outed him, thats serious shit in the MLB. Players never out other players or come out and flat out rip players like Oswald did with A-Rod.