Bruce believes Di Canio's approach to management is all wrong.
"You cannot manage in the Premier League these days through a fear factor," Bruce told talkSPORT. "You've got to be able to manage individuals.
"Man management has become more relevant in my experience than coaching.
"Once you get yourself in the Premier League, they're all good players and you've got to find a way of getting the best out of them.
"It's never been my style to criticise anyone in public and I'm disappointed for Paolo. He's a character. A manager's lost his job. Management is a lonely place and he's lost his job this morning. I feel sorry for any manager in that position. I've gone through it and it's not nice."