Alex Liddi has the potential to perform like Reynolds, Howard, Branyan, et al (although he's never shown the ability to walk like any of them), but he hasn't done it yet, and the world of baseball is littered with guys that crushed in AAA but were exposed in the Majors. Often, in cases like Branyan and Cust, it takes them years to get it together (or get a chance to strike out 200 times). Chris Davis is still trying to figure it out, we saw Carlos Peguero this year try to make it work and Wladimir Balentien a couple years ago, Wily Mo Pena, Brad Eldred, Jason Dubois, Mat Gamel, Josh Bell. Until the guy has actually made the skill work at the Major League level, I don't think he should block the acquisition of someone who's already got it working and isn't too expensive.