Oh God, shut up. All people like you and the thread starter, who go on and on about how Sam and Dean's has gotten stale and boring, and needs to build deep relationships with other character are nothing but Cas fans wanting more Dean screentime and bonding for your favorite. I have seen you say this routine over and over again for over three years.

Not liking Cas doesn't mean that I hate all side characters. Cas is actually the only one on Spn that I have come to dislike.

Wanting Sam and Dean to connect and talk doesn't mean I or others like me want all other characters gone either. I love season 1-3 and there was plenty of side characters.