I liked Chemda's comparison to Howard Stern. He does have writers. I heard somewhere that when Artie Lange was hired; he was never supposed to be ON the show. He was just supposed to write things. Like, he'd look at the news and come up with commentary and jokes. But Howard thought the jokes were better in Artie's own voice.
I feel like Danny has a similar role. He's not K or C, but he is an important part of KATG. He's always on the couch. Writing in. He does writing. He's a writer!
It's a good thing KATG has The Girl or it'd be in serious trouble, managerial speaking

She might be the only mature adult in the building.
Keith just can't help himself. He's gotta have that last barbed word thrown in.