I don't really see an organizational approach thing there. The biggest culprits for walks so far have been Pressly, Thielbar, and Pearson, none of whom have the history with walks that would suggest that. It's mostly a 'relievers are very random over a handful of outings' thing, along with 'relievers are pretty random year to year' and possibly a bit of a coaching/pitch-calling phenomenon. Playing the offenses they have doesn't help either.