Yeah, plus you guy will be getting regular playing time in the majors, so he won't be missing out on development even though he misses out on the playoffs. I have read that playing time in the playoffs helps development more than regular season playing time, but (a) this may be untrue, and (b) it might only apply to playoffs vs regular season playing time at the same level, in which case regular season at bats in the majors might be just as valuable, or more, than at bats in AAA playoffs. Either way, your guy still keeps developing with regular at bats, and, like tec said, making the ML playoffs should trump anything that might happen in AAA.