Sippin' through the final straw

Jon Lieber has a ruptured tendon in his foot, and he may be out for the season. Not to say that Lieber is an integral part of the Phils' rotation -- he's way too inconsistent for that -- but he has something that whoever replaces him almost certainly won't: experience. Who will the Phillies bring up from Double-A Reading to fill the gap? And why doesn't this organization seem to have any arms at Triple-A? Guess we'll know soon.