Yes, definitely pick up someone to play backup at 2B. At the very least, Chris B. Young should not be on your roster!
If Polanco still qualifies at 2B in your league, pick him up. He'll still get close to .300 and hopefully will get occasionally AB at the 2 spot in the Phillies lineup.
Scott Sizemore doesn't project well this year, .255 according to CHONE. Other than that, maybe Scutaro? The other FA's don't play 2B. Also, your signature doesn't show up for me.
Hi, I'm Troy McClure! You might remember me from such nature films as "Earwigs: Ewwww" and "Man vs. Nature: The Road to Victory."