management probably wanted him to air on the conservative side considering he is a young player and stealing bases isnt his thing really
that said, based off of the speed i DID see, i would say that, if he learns the technique, he can be a 15 or even max 20 stolen base threat
the last time that he spent the majority of a season in the minor leagues ( 2009 in AA) he stole 19....hes not FAST but he has imo slightly above average speed...he just needs to learn when and how to swipe the bag...truthfully, he should be learning from wright who is not much faster than him (if hes even faster at all) but is a good base stealer respective to his speed (though last year he got a little steal happy and wound up being cs more than at any other point in his career)