1. He had played roughly two weeks of the 2013 season before breaking his wrist.
2. He was hitting badly through the day he broke his wrist too - .220/.313/.317 - so obviously his shoulder was affecting his performance prior to the wrist injury as well. Oh wait, that was RYAN ZIMMERMAN'S line through the day Espinosa broke his wrist. My point is we really have no idea whether his shoulder rehab would have worked or not. Two weeks is too small a sample size to say that his shoulder rehab was ineffective.
3. In spring training last year, Danny Espinosa had 78 ABs and hit .333/.358/.474 with a 22% K-rate. HE HAD MORE HITS IN SPRING TRAINING THAN DURING THE SEASON. Again, spring training isn't everything. But it also doesn't indicate either (a) his shoulder rehab was completely ineffective, or (b) he is now completely unable to hit.
4. It's hard to hit with a broken wrist, and it's not surprising that if he stupidly played through a broken wrist all season, he didn't hit well, shoulder or no shoulder.
5. We have no idea whether his wrist and shoulder are completely healed or not heading into the 2014 season.
But my ultimate point is that it doesn't matter. If he's having problems hitting, send him to AAA. If he's not hitting in 2015, send him to AAA. If he's not hitting in 2016, let him be a Lombardozzi type for $500K. Then make a decision in 2017.
But you don't trade a guy at the nadir of his trade value for peanuts when you have 3 years at a total cost of about $600K to either let him work his way to the majors again, or reestablish his trade value so you can get more for him.