I think Lukaku and Stones are the only ones nailed on to be successful (knock on wood) right now.
I'm mostly worried about Barkley. He seemed to digress this past season, and it's apparent his confidence was shattered. I really hope he gets a goal early in the the campaign to help build it up again.
Gerry is everything you'd expect in a winger; pacey, skillful, and a ball-hog. I think we need that type of player though.
I also have a good feeling about Henen. I think he's knocking on the first team's door.