Baseball is a game of statistics. Just about every nuance of the game is being recorded somewhere.
I found this page that compares Salary v. Performance of MLB teams. As of August 4th, the Angels, Rays, and Twins were getting the most bangs for their bucks, while the teams (wanna take a guess?) that were pissing away their money were led by who else? The Yankees. Runners up at the trough include Mets, Dodgers, and Tigers.