Wilshere will start tonight's friendly in Denmark.
Capello said: "I know he's 19 but the best players I managed - Franco Baresi, Paolo Maldini, Raul - all started really young.
"He has the talent but you have to wait. He has to improve every time. I hope he will play a lot of games for England. We will have found a solution for the player in front of the back four.
"When he started, he preferred to go forward but he can play in this position. Andrea Pirlo played behind the forwards and ended up in front of the back four."