"I made a lot of mistakes at Leicester but I never ever doubted I could do the job properly," he told Scotland on Sunday. "When I started back at Raith Rovers (after returning north] I didn't go there to stay. I was even more ambitious then than I was when I started out and I'm a better manager because of that. It gave me even more determination to prove myself all over again.

"Sometimes you have to take a step back to progress and if you've got enough determination to succeed, you will do it. If you get a setback and give up, you'd never have been a good manager anyway. You need to take the blows and not fall down. There has never been a time when I have thought about quitting."