Impact of the Billy Wagner trade

The Billy Wagner acquisition by the Red Sox is a major acquisition that will have an impact on the Sox's ability to close out games, both down the stretch run and (cross your fingers) in the playoffs. This is one of your more complicated trades: the Red Sox had to navigate the morass of a 2010 option and arbitration possibilities to get the lefty into the Sox bullpen. Let's look at where things now stand. BILLY WAGNER Wagner, 37, is coming off Tommy John surgery but hasn't missed a beat in his return. In two innings, he's whiffed four without giving up a hit and only issuing one free pass. His velocity is right where it left off, at 94.6 miles per hour but it looks like as if he doesn't quite trust his arm yet to completely air it out: even with the small sample size, the fact that he's only thrown his fastball 57.1 percent of the time thus far gives one pause. For comparison, he was throwing his heater 71.1 percent of the time last year before go...