"The sky is the limit for him," the keeper told evertonTV. "Jack is a great player. He has all the tools to become a top level player, professionally and internationally.
"It's up to him now that he keeps his mind right does all the right things and continues to get better."
Howard is certain that Rodwell is at the right Club to help him prosper at the very highest level.
"If he continues the ascent he is on now, in five or six years he will be a big time player," he said.
"I think he knows he is in the right place. All the people around him, myself, the coaches, the senior players need to remind him.
"People get tempted by different things but this is a great Club for him to be at to develop. If he wants to be successful, he can do it here."