Indeed, Bridges was amazed by Allardyce's analysis and attention to detail. And he says he didn't experience anything as advanced during his time at Leeds.
Bridges told the Echo: "I first met Big Sam when he signed me for Bolton Wanderers in 2004.
"I could not believe how in depth his team analysis video sessions were and the way he dissected the opposition’s playing style. He also made it clear that we as players could not hide from the Pro-Zone stats we used at Bolton.
"Having played at Leeds you would have thought I’d seen this before and it should of been the norm but it wasn’t - this was all new to me and I loved how detailed it was."
The problem, of course, is that Big Sam was a revolutionary back then - but is far from it these days.
Still, he does what he says on the tin and, for Sunderland, there was no possible better candidate.
As the former Leeds striker says, Allardyce will likely apply a meticulous attention to detail that Sunderland have been missing for quite some time. That will no doubt be applied to the setup of the Black Cats' back four, how they line up at set-pieces and the like.
And that's exactly the kind of thing that keeps you up. Look at the strugglers around Sunderland and none of them are doing the basics. Allardyce's men will, giving them a distinct advantage in the battle for safety already.