"If you looked at what Adel is not good at, you wouldn't touch him with a barge pole," he said. "You've got to look at what he is good at and we would not be where we are now without him, without me looking at what he is good at.
"Yes, he might not be able to crack in the Premier League. Even Adel doesn't know that yet.
"He is only a young lad. You forget he is a young kid really.
"I think he is trying very, very hard at the moment and the next few games will be interesting.
"I think when you're playing the top clubs you need that something special to win you games. We've missed his contribution goal-wise and hopefully, if Joey plays really well and some of the other lads play really well, the opportunities for Adel will come."
He added: "If Adel gets an opportunity and plays well he is an asset to anybody in that league.
"Yes, he has not scored in the Premier League yet, he has not set the world alight but he has had opportunities and I think [he will continue to do so]."