He's a solid player, but his 104 OPS+ and concussion history doesn't wet my whistle and acquiring him seems to require an overpay.
His low OPS+ is basically a function of the fact that he's a slappy singles hitter. His slugging comes from speed, not power - think a guy who legs doubles into triples and singles into doubles. He's got basically zero power. That's not his game - WAR loves him, mostly because UZR has loved him. Even that, though I think overrates his 2011. I'm fundamentally not sure how much better he really is from a Nyjer Morgan type.
I've cooled on Span - he's not that young and has essentially zero projectability left. We've got guys in the system right now (Brown, Goodwin, Perez, Taylor) all of whom could be Span or better and I don't know where you put Morse/Werth if you bring in Span until you resolve the 1b situation.
