The 19-year-old former Birmingham player scored City's first pre-season goal against Burnley and McCall told the Telegraph & Argus:
"It will give us the chance to have a bit more of a look at him.
"We've got a few young midfielders at the club but James has shown promise in certain areas and we can see how he's going."
Meanwhile, Steve O'Leary will get another chance to impress McCall in a behind-closed-doors friendly against Sheffield Wednesday after the 24-year-old former Hereford man caught the eye in Saturday's game with Carlisle.
"The lad hasn't played an awful lot of football so to do the full 90 minutes wasn't easy. He was very good for the first half hour but then naturally tired and drifted out a little bit towards the end. But he certainly did enough to earn another chance," McCall added.