Casey vs. Santorum Debate

Well, I just finished watching the Casey vs. Santorum debate. I hate to admit it, but Santorum clobbered an empty suit. I can't in good conscience vote for Casey. He is so obviously unprepared for the job that it would be like voting for a democratic version of Bush. He simply isn't fit to represent the Commonwealth. When will the Democrats learn to nominate qualified candidates instead of simply endorsing the best name?