Walking Wounded - Make a Move or Not?

So we're barely two weeks into the season and my bench already resembles an infirmary.  Ryan Zimmerman, Joe Mauer, Evan Longoria, Brandon Morrow and Brian Matusz are all sitting my bench and, as I'm sure you all know, are on the DL for varied periods of time.

Thankfully, on the offensive side, I have Victor Martinez and Pablo Sandoval to cover my needs at catcher and third base, but I currently have no one in the UTIL slot.  As far as pitching goes, the guys I tabbed to be my SP have had mixed results so far.  Jered Weaver has been phenomenal, John Danks has been pretty good, but Jeremy Hellickson and Madison Bumgarner have been underwhelming.  I figured Morrow would bolster my strikeout numbers when he returned, and Matusz to help in a few categories, but it's a tricky situation.

There are a few intriguing possibilites on the FA market:  James Shields, Michael Pineda and Wade Davis among the available pitchers; Vlad Guerrero, David Freese and Logan Morrison among the hitters.  I'm extrememly reluctant to give up any of my DLed players, though there's the obvious risk of losing too much ground waiting for everyone to get healthy.  If this were your team, would you make a move or wait?