That, and the fact he ONLY shows up whenever them two are about to finally throw caution to the wind and do something. That's whats annoying me, his only purpose is for that and they've made no attempt to make him into something other than "the guy that gets in the way", at least Michael Trucco was a fellow cop (or was he FBI?) who did something.
I can just see the casting call that went out for Josh's character. "Must be a convincing cockblocker".