Thrash...you're a Red Sox fan and you're GLAD he's hurt? Do the real Red Sox fans a favor, and go root for some other team. Anyone who's ever GLAD someone got hurt is an a-hole, period.
As for Lowe, he's been brutal, no question. He's just not getting much action on the sinker, and if he can't get that baby working, he's not going to be effective. He's survived the season so far based on great run support (seven runs plus per game before today).
Once he's fit to pitch again, I'm not so sure that it wouldn't be wise to let him work more frequently out of the pen. He seems to do better (as do many sinkerballers) when the arm's a little weary. Not sure ths Sox have the replacement starter to try this, but it's an idea that may be worth exploring.