Burnley boss Sean Dyche says he highly doubts he will still be in management at 65, like West Ham counterpart Manuel Pellegrini, because the job’s perspective will change.
Dyche, who celebrated his sixth year in charge at Turf Moor last weekend, takes the Clarets to London Stadium on Saturday to face the Hammers, who are led by the vastly experienced Chilean.
Bournemouth's Eddie Howe and Dyche are the two longest-serving managers in the Premier League but the former Watford boss believes it will become increasingly more difficult to hold down a job in the game.
When asked whether he believed he would still be a manger at 65, he emphatically said: "No.
"I don't think it will be that kind of game in the future for management. Whether you are good bad, or indifferent I just don't think it will be.
"The demands of the instant nature of coaching and management will change the viewpoint of longevity from the manager's point of view, not necessarily the club's point of view. It is going to be a future of hopping around clubs - a one season mentality possibly.
"There will be few of my type of situation and Eddie, people like that who are staying at a club for a longish time. That will be few and far between because of the nature of the game. Unless things change of course.
"Unless the viewpoint of management changes. I don't think I would want to be 65, still popping around club after club. You never know but I don't think at 65 I will be doing it."
Burnley have conceded nine goals in their past two league fixtures against Manchester City and Chelsea respectively but even with games against Leicester and Newcastle to follow their meeting against West Ham, Dyche says there are "no guarantees".
"What we have learnt is all periods of the Premier League are crucial. You just need points. When you are in a category of a number of teams you just want points," he said.
"They can come out of circumstances when people didn't think you can get them and we have done that on a number of occasions.
"Usually they come from the group of teams you have mentioned, some of which are in our next games. You can't guarantee one period of a season.
"We had a period last season when we didn't win in eleven and yet finished seventh because of the work we had done in the early part of the season.
"The whole season is important - every game. That is why I have always stood by that one game at a time mentality. There are absolutely no guarantees because every side is a good side in the Premier League."
Two fans have been charged for invading the pitch following Wednesday night's Carabao Cup meeting between Tottenham and West Ham at the London Stadium, but Dyche has no fears over security for the match this weekend.
Last season's corresponding fixture in March saw West Ham hand lifetime bans to the five individuals who invaded the pitch and those who three coins and other objects.
"I am sure the right people will deal with anything that is needed," Dyche said.
"Different clubs have different challenges but there are enough good people within those clubs to organise and make sure things are taken care of. I am sure of that."