Phil Brown and Ian Holloway were united in their condemnation of relegated Leeds entering administration when quizzed after Plymouth's 2-1 final-day win at Hull.
Although Hull's Coca-Cola Championship survival was rubber-stamped after their Yorkshire rivals were docked 10 points earlier this week - rather than starting next season in League One with a significant handicap - Brown said: "I think it's disgraceful.
"It's almost tantamount cheating legally, if there's such a thing.
"We've been working our b******* off since Christmas to survive and to pull the plug in terms of what Leeds have done, I feel cheated.
"We've worked so hard and it's a surreal position.''
Plymouth boss Holloway added: "I don't like that at all.
"In fact, it's terribly, disgustingly wrong. You don't go writing out debts - it's tantamount to cheating.
"You shouldn't overspend and you should be docked 10 points next season like poor old Rotherham were.''
Although substitute Stuart Elliott's goal gave Hull fans hope, their end-of-season swansong was tarnished by strikes from Peter Halmosi and Sylvain Ebanks-Blake, who also missed a penalty.
Brown, who will sit down with chairman Adam Pearson for contract talks next week, added: "If we had equalised in the last minute that would have summed our season up.
"We've been testing ourselves all season and then stepping up to the plate.
"We know what's needed to win football games and we've proved that. But there's been some great highs but also some low lows.
"But the challenge was to be fourth bottom and still a Championship team and we've succeeded in both of them.
"Hopefully by Wednesday or Thursday I'll have an idea who wants to be with us and who wants to be away - I expect a busy summer.''
Holloway, whose team finished the season with five wins on the bounce, challenged his players to improve on their 11th-placed finish next term.
Holloway has done a superb job with limited resources but felt his side's memorable FA Cup run cost Plymouth a place in the play-offs.
"I'm very pleased to win the game and what we are changing into,'' he said.
"We were very accomplished and calm and now understand the league and how to win games in it.
"Considering how many young players we've got, I'm delighted.
"Our cup run spoiled our momentum and we didn't deserve to be down there (in 11th place).
"But it shows the character of the lads to win their last five games. Hopefully we can build on that, move on and get better - we want to move forward.''
The Plymouth boss also hopes to tie up a permanent deal for Halmosi, whose loan deal from Hungarian side Debreceni VSC has now expired.
A fee of £400,000 has been bandied around for the Hungary international.
"I like to keep good players at my football club,'' said Holloway.
"Hopefully I can do that. I'm sure if the lad wants to stay we can go through with it.
"Quality always comes through in the end - that boy is a quality player.''