I'm a little worried that he might be terrible, and a medium amount worried that his first three seasons might have been Fluky BABIP, Fluky BABIP, Mediocre Masked By Variance In Defensive Stats. If the real Castro is .305 BABIP and slightly below average defense, I wouldn't mind gettin' out if there's still someone out there who thinks he might have a 5-win future and is willing to pay for him as such.