Alright just take a second and forget about the original. It's not all about living up to it and exact adaptation of the British characters. The underlying objective is to realistically portray the situation a big family gets into when they're without parents & resources in suburban America. The trademark Gallagher toughness and unique head on methodology of dealing with any difficulties, no matter how fucked up it is. That is what this show sells and we willingly buy it because of the right casting of the main characters. They deliver in every shows. Its only up to the writers on how this show is carried forward.
P.S: Kev & V's simply twisted foster child was really unnecessary for the show.