The season is still bogged down by silly romance subplots even without Brody, but if you could stomach season 3 I guess season 4 is worth giving a shot.
Can you point them out? The Carrie/Quinn thing is only occasionally hinted at, and hasn't been given much onscreen attention without something else more important going on.
I don't know, I'm liking this season so far. Especially the last episode, which was awesome.