i can understand why you might not be keen on this, From what i've seen of your lad, he's a tricky wide player, but i wouldn't worry about Lamberts playing style affecting his progression.
I mean look at N'Zogbia, if he can start to be effective in this system, then Jack will have no trouble.
Do you mean my brother yeah he does like to keep the ball. No one touch stuff.
Well it is always good to develop further sides to your game.