The FA Cup games wasn't his first decent performance but it was the first time he looked to be taking initiative. He was constantly drifting in and finding himself in the middle and constantly trying to get on the ball, the confidence is definitely growing.
If he's going to have a future here he needs to start doing that on a game by game basis, because once Alexis, Welbeck, Jack and Santi return the mins will start to dry up again otherwise.