Bellerin I'll give you, he's somehow massively regressed since he first burst onto the scene. He has zero competition and is virtually undroppable despite making so many mistakes and being poor so often.
Iwobi skins players for fun, he's talented but regressed a lot under Wenger. I don't really mind him giving away possession as he's one of the few players driving forward and actually trying to create something. I enjoyed watching him against Fulham and I can see glimpses of why he's starting, I said he needs to add some consistency to his end product because too often he makes the wrong decision or fluffs a good chance. If he can sort that out I wouldn't mind him keeping Auba out the team, because he's been pretty poor of late. Still manages the odd goal somehow.