And he's set his sights higher than League Two.
Campbell told the Mirror: “It's a different conversation now. Before it was: 'OK, great career - but let's see what happens now.' Now, I've shown what I'm about. Not many people can do what I did, come through it and I know I can do the job.
“Championship, Premier League - you just never know. I just want a challenge.
“I've shown what I can do. I don't need a three year contract, give me one year and I'll show you what I can do.
“I can't wait for the next opportunity. I'm struggling to be out of the game because all I want is to get back in.
"I'm a manager. If I didn't want it so much I wouldn't be here talking about it. Here or abroad. I'm raring to go."