"Our new signings have helped make a difference to how we are playing," the manager told evertonfc.com. "Gana brings quality and experience and a really nice manner. He's another good lad to have around the training ground.
"He loves the club and wanted to come home and you've seen from his performances so far what he brings to the team. For me, he's world-class but coming from France back to the Premier League after three years presents a lot of challenges – physicality, speed – so I think he'll get even better for us. You saw the calmness and the sense of positioning off the ball against West Ham. The options and balance in my midfield are getting better now.
"Neal got his first goal for the club, too, and I think he's already shown why we brought him to Everton. He's got a really good work-ethic off the ball which is important for us and his goal was a fantastic finish. To control it quickly at pace, get his shot away as fast as he did shows he's a goalscorer.
"We need Dom fit but when you have Neal you know you have a proven Premier League striker. He's fitted in really well with the group and you can rely on him to come in and play the way he did.
"I've got nice options up front now and it's given us the comfort of allowing Dom extra time to get fit during the international break because we are going to need him, too. We've got options in pretty much every position."