Campbell was part of the Invincibles side of 2003/04, who were lauded as much for their strong, physical presence as they were for their attractive, pass-and-move brand of football.
Those days now seem like a distant memory round the Emirates, after Arsenal recorded their worst season in over two decades to finish eighth in the table.
"When I was there we had a team full of tough guys. All great gentlemen, straight-talking. There were loads of characters, great banter and with that came a few fights from time to time. But above all that, it was a team full of great personalities; great people.
"We didn't shy away from things at all. Is football like that now? Are Arsenal like that now? I don't think so."
"We were ruthless gentlemen. There is such a thing; you know what's good and what's bad but when it comes to football there's no mucking around. It's as simple as that."
He added: "Does the club want to start again, forgetting about how Arsenal of old used to win? You have to ask the guys at the top. It's a different time now.
"It was extremely tough when we were playing; I don't know whether things have softened now. Has life softened? Regardless, you still need those players with that fight inside of them who can go away to Burnley on a windy midweek night and get a result."