You're exaggerating a little here but you're not wrong, his control is problematic which is why he isn't world class. However getting the ball up the field is vitally important so he should have full latitude to be in the spots that allow him to do it. Otherwise it just doesn't happen.
Even Dycheball will work a lot better just simply getting Iwobi off that forsaken right wing.
Davies hasn't been playing central at Iwobi's expense, though. He came on for 20 mins in the derby when the game was lost - and he managed to miss a sitter, ironically set up by Iwobi from the right, even though you insist he can't play there.
It's funny that the vast majority of games Iwobi has performed well in for us has been from the right, even though you say he can't play there at all.
He's there to defend. He did it badly the other night. He's also a massive elephant in the room. He isn't great at all, yet he has to be in because he's the only player that creates. But he really just doesn't fit anywhere.
His best form at the start of the season came when he was playing CM in a 2 and getting loads of the ball. I'm not sure we can currently afford to play that way. It's not his fault, he'll work hard wherever he goes and has 1-2 chances in him a game so he has to play. But it's a problem.