While the 64-year-old is struggling to mount a charge for the npower Championship play-offs with the Whites, Mancini also appears to be falling short of his targets. City's defence of their Barclays Premier League crown looks to be fading fast as they sit 12 points behind Manchester United with just 12 games to play.
Warnock, sacked by QPR last term after leading the club into the top flight, has had little financial support at Leeds but is adamant he is happy in his current environment, and said: "I don't think I'd be able to cope. I only had six months with the current type of Premier League players and I didn't enjoy that at all."
He went on: "I wouldn't like to have two teams where you've got 11 or 12 not in the team to deal with, who are world class players, who all think they should be in the team, who all their agents think they should be in the team. Good luck to them.
"I don't envy that at all. It's fabulous to have a team like that, but I don't envy the off-the-field things that you get.
"It's a major problem at the top clubs I think. I'd love to go up with Leeds, with a genuine bunch of lads, like we did at QPR - most of them are back in the team now - it's great to go up with a team like that.
"I think people like Mancini, and I'm not being disrespectful to him, need the financial support they've got. Like Mourinho. I don't think they could manage at Leeds in the current climate, or anywhere else other than top level, that's the way they are."
Warnock is set to be reunited with striker Carlos Tevez, who controversially condemned the veteran manager's former club Sheffield United to relegation in 2007.
West Ham were fined £5million by a Premier League inquiry for breaching rules governing third-party ownership, but they received no points deduction and Tevez was allowed to play in the final three games of the campaign with his winner at Old Trafford on the final day saving the Hammers from the drop.
"We have a laugh about it. I said to him last time I saw him you cost me a million quid and he understood my English," Warnock said. "He had a laugh. He's a fabulous player isn't he? If I'd managed to get him at Sheffield United I'd have been delighted with him."