The attacking midfielder has been impressive for the Foxes this season, which earned him a call-up to the England squad last week.
"I just think he is the type of player where he will drift from position to position, like when I had Coutinho at Liverpool, where sometimes he will play inside and sometimes he will play off the side.
"James is a bit like that in his positioning, but he will continue to work.
"His job is to create and score goals, so he will continue to work on that.
You can see his always threatening to get in behind, you could see (against Manchester United) the keeper made a save with his ankle.
"But that's what it's about for him - numbers. Creating goals and scoring goals.
"It's only his second year at this level and he has shown great talent."