McCarthy has always been a fan of Flint, who terrorised his Ipswich Town sides down the years, and revealed he was delighted when he learned he would be working with him at Cardiff.
Mick McCarthy:
"I can’t sign all the players that troubled my Ipswich side in the past, because quite a few have done that!" McCarthy joked.
"Aden was excellent at Bristol City. I was really happy to inherit him, actually. To be getting him as a player.
"I’ve only had positive thoughts about Flint. He’s not disappointed me, he’s been excellent. The three lads at the back have really responded well to it and I think have played very well.
"They’ve reacted off each other and organised themselves very well as a three or a five. Aden’s been excellent."
McCarthy said there was a visible lift in confidence on the training ground - positive results will do that.
There have been quiet murmurings that Cardiff are now looking up at the top six once again, indeed it is mathematically possible for them to be in seventh place come this weekend if results go their way.
But while McCarthy is clearly happy with how things have gone, he warned against getting too far ahead of himself ahead of the clash with Coventry City.
"We’ve had two really good results," he said. "But what we can’t do is be complacent. We’ve got eight points from four games, but we don’t suddenly start believing we are this team who can press all the way.
"We have got to win [on Saturday] and get something out of the next game at Luton.
"If we can do that for six, seven, eight games, then we can start believing. What I don’t want to do is to start bigging it up and then suddenly find we trip ourselves up against Coventry.
"I only look as far as the next game. That’s a bit boring I know.
"But if you’re saying to me on Monday ‘Oh Mick another great three points’, I’ll be delighted. But there’s a big ‘if’ there as Coventry are going to be a hard nut to crack."
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