Harry Redknapp predicts the Barclays Premier League will soon be dominated by foreign owners whose interference will erode the art of management.
Manchester City's £32.4million acquisition of Robinho sent shockwaves through the game as new investors the Abu Dhabi United Group flexed their financial muscle.
Even Chelsea, bankrolled by Russian billionaire Roman Abramovich, were outmanoeuvred for Robinho and Redknapp fears the Brazilian's arrival at Eastlands continues a worrying trend.
The Portsmouth boss believes transfer policy will soon be dictated to managers by the growing influx of super-rich owners who will compete to sign the biggest names.
And Redknapp insists the arrival of more superstar players will lead to a proliferation of managerial casualties with silverware demanded in return for investment.
"In future managers will not be responsible for buying and selling players," Redknapp said at Wednesday's Soccer Aid training session.
"So many owners with huge financial clout are coming in now and they're the ones who will buy and sell the players.
"The manager's job will only be about coaching and picking the team.
"Managers as we know them now could be a thing of the past within the next decade. I can see the manager's role being reduced.
"Now owners will go 'we'll have him, him and him' and the managers must get on with it.
"For sure that's detrimental to football and the art of football management.
"Managers will have to pick the big names bought by the owners and if they're not successful they'll suffer.
"There will be more and more mega-rich owners coming from abroad and there will be more and more interference.
"Players will be given to the manager, who won't have a whole lot of input into the process.
"Soon every club in the Premiership will be owned by mega-rich foreign investors. That's how it will go.
"Every one of them will want to win the Premier League and the Champions League.
"But only two sides can do that so it will become even harder for managers as they pay the price. It will be like a revolving door.
"Owners will say 'I've put £100million into football why aren't I winning the Premier League?'
"The manager will take the fall and I see there being a big turnover in managers in years to come."
Redknapp claims the manner of Robinho's arrival at Eastlands - which caught the game by surprise on a dramatic transfer deadline day - highlights the changing role of a manager.
"No disrespect to (Manchester City boss) Mark Hughes but look what happened with Robinho," he said.
"Robinho is a great player but it was the new owner who wanted him and got him.
"I'm sure Mark was as surprised as anyone. He was out playing golf that day and suddenly he's got Robinho.
"He wasn't instrumental in the process and the first time he met the player was Tuesday.
"It's not a case of a manager ordering a report on a player, having him scouted, meeting him and getting to know him.
"It used to be that you'd want a feel for the player to know if he's the type of lad you want at your club and to play for you."
