Dan Harmon: First season is very different from second season in one fundamental regard, which is that first season I did not know how to work with anybody. I did this weird Howard Hughes thing in my pyjamas at home where I would re-write every episode for two days and people would be calling and going: “Well, we need the thing.” and I’d go: “Yeah, well, why don’t you shoot the one you got! You wanna bad TV show so much, shoot the script you got! I’ll see you at the finish line, motherfucker! — Show me all the blueprints!“ 
It occurred to me finishing a season like that, that I was thirty seven and not twelve, and that we were spending a lot of money on a bunch of really talented people that were there to help me. … I dragged these poor ten people into that horrible dark process … I’ve never had that intimate of a relationship with a group of people because I’m a bad, bad, bad person. This season, if you like it more than the first season, you like it because of our writers and I just wanted to acknowledge that. Our writing staff is the best writing staff in the world.