My thoughts:

1. Trading for a player does not necessitate making him a starter. It’s not like the Royals traded a major piece of talent for him. And just because a team trades for a prospect, that doesn’t mean they think he’s a future star who just needs some playing time to blossom.
2. He’s going to play. He’s likely to make some starts. The second base position is in flux and this will likely continue. It’s hard to say who will get the most starts at 2B this season. I think he’ll likely get 200+ PA’s. He may get 350+ PA’s.
3. The Royals have multiple years of team control remaining for Callaspo. He’ll get some PT this year; maybe he’ll get more next year. We don’t know if Teahen will be back or where he’ll be playing. Much can happen over the next few years.

In short, with Guillen in the OF, it makes sense to give Teahen significant playing time at second base. The Royals have a chance to develop a good overall player for that position in Teahen. Callaspo shouldn’t necessarily get 600 PA’s just because the Royals traded a so-so pitching prospect for him (Buckner looks more and more like a borderline 5th SP/middle reliever with every passing day). In short, Callaspo is a decent young player with some upside, but his upside doesn’t look very high to me or many others. He isn’t likely to ever be a good defensive 2B and he isn’t likely to ever be a good hitter. But he could definitely be a decent defender and decent hitter for the position. That’s nothing to get excited about, nor is he someone you make sure is in your lineup everyday. If it works out, it works out. But if you think you’ve got a better option, go for it.

profiled alot better as a prospect than he currently is playing. He showed alot more pop in the minors. Thank you West PCL, with his current power he is gonna have to be a .300+ hitter just to be average offensively at 2b and average isn’t good enough with his defense and less than stellar personal track record.