User blog comment:Savannah Star/Bobby's fate?/@comment-3481504-20111203225931/@comment-5605779-20111204022812

In a way, I think they take advantage of Cas as well; Rachel even pointed it out:

RACHEL: I think you call him when you need something. We're fighting a war.

SAM: We get that.

RACHEL: Clearly you don't, or you wouldn't call him every time you stub your toe, you petty, entitled little pie--

CASTIEL: Rachel. That's enough.

Don't get me wrong, I liked Cas and Bobby but they seemed to be crutches for Sam and Dean the past few seasons.