Errors do matter some, and that stat is particularly lol-worthy. He might be better than Castro, but like Sofa said, it's probably negligible. Plus, Castro could be a kick-ass second baseman for all we know. the only thing lol-worthy is citing an 11 game sample size as evidence of anything I mentioned his 52 games in the Majors last year as well. Not huge samples, but we might need to back off on the "very good defender" stuff until he shows us he is one, that's all. by the same token, perhaps we should back off the "difference is negligible" stuff until he shows it. the book on him is plus defense. the manager of the team wanted him on the opening day roster in part because of his defense. over the course of a season, i think his defense is better than castro's, and he still has some time to improve that said, i'm not advocating for anything. just pointing out that his defense is better than castro's, potentially significantly so