The former Tottenham midfielder had spent four months in the wilderness until he was handed a place on the bench against Bradford on Saturday and his manager will now see if he can earn a place in the side.
"It was a footballing decision - I've had no pressure from above me to select him on Saturday or to bring him back into the training group," Jackett said.
"I have to make decisions every day and every week. You can't get all of those right but decisions have to be made.
"When I had a problem with Jack Price on Friday morning, I felt at that particular time it was the right decision for the good of the team and the club (to bring Jamie back).
"Other players have got moves but it hasn't happened for him. If he can be an asset to us and is capable of shaping our season and helping us to promotion, it will have been a good decision."