Alan Curbishley was once tipped for the England job, while also being touted as a potential Liverpool manager.
However, ever since leaving West Ham back in 2008, the 66-year-old has vanished from the spotlight.
Curbishley worked wonders at Charlton, guiding them to the Premier League in 2000 after they won the Football League First Division.
He then proceeded to join West Ham in 2006 and managed to keep the Hammers in the top flight after they'd looked certain to go down.
Football news: Alan Curbishley guided Charlton to the Premier League back in 2000
Curbishley left West Ham in 2008, however, after feeling aggrieved after the sales of Anton Ferdinand and George McCartney.
He felt his position at the club was untenable - and has vanished from the public eye ever since.
Now, speaking exclusively to GB News via Free Bets UK, Curbishley has explained why he never returned to the dugout.
"Well the thing was obviously when I left West Ham it took a year to sort out my situation with the club," he said.
"And I was grateful when David Sullivan took over because he sorted it out quite quickly.
"But during that time I wasn't really getting offered the jobs that I thought were good enough, you know for me.
"No disrespect, but I didn't want to go back into the Championship.
"I got offered a couple of clubs with 10, 11 games left who were in the relegation scrap or in the bottom three and I didn't really want to go to a club and then suddenly end up in the Championship after 10 games.
"Then suddenly I was out for two years and Sir Alex Ferguson kept saying to me 'you know you've got to get back in, you've got to get back in' and then suddenly you're out you know.
"I do look at it and I see people like Sam [Allardyce] jumping back in and David Moyes and Stevie Bruce jumping back in, moving to different parts of the country just to get back in and perhaps that was my problem.
Football news: Alan Curbishley has shed light on regrets over his departure from West Ham
"I was a bit picky, a bit choosy and should have jumped back in at one of the offers and see where that led but then suddenly I found myself in a different situation.
"I never really saw my family grow up, my kids when I was managing. And I suddenly started seeing more of them and the grandkids. And then you're out.
"I wake up in the morning, think about me, and not 50 other people like I used to."
There is no bad blood with West Ham, however.
And the former Hammers boss has expressed his regret over his departure, pondering whether he should stuck with the job for a little bit longer.
"If I had my time again, I'd perhaps shouldn't have left the way I did," he revealed.
"Some people would have said to me tough it out etc and perhaps they're probably right, who knows what would have happened?
"I actually felt that coming from Charlton when I was complete control of everything, then wasn't at West Ham, that was probably a problem.
"Perhaps I was a little bit too hasty. I didn't take the decision lightly, there were things going on that weren't right and I had to make a stand."
Curbishley has made peace with the fact his management career is now seemingly over. However, he's ready to step in as a mentor if needed.