He is going to be mainly a sub I think, been plenty of time for Lamela to come good, I am not holding my breath that he will.
He had 7 assists last season. No one else in the squad came close to that figure. The guy is the only lock-picker we have. No one else in the squad can play the type of ball he did against Burnley at 0-0 in the 37th game of the season last year. If he's going to be predominantly on the bench, then a team like Juventus will be all over him, as they rate him highly and need a #10.