User blog comment:Rafe Adler/"Advanced Thanatology" Discussion/@comment-26982641-20171110153721/@comment-10889355-20171110170218

Well, I kind of disagree. Personally, Cas and Sam are on the same level, at least for Seasons 10 to 12, both participated on the main plots of the seasons but they haven't had a storyline of their own.

However, Cas had a fair development on his character this season so far. I mean, he's starting to realize his worth.