Sheffield Wednesday: Carlos Carvalhal is concerned over lack of stability in English football

Carvalhal has expressed his concern following Birmingham City’s shock decision to sack Gary Rowett earlier this week.

Despite the Blues lying just a point off the play-off positions, Rowett, pictured inset, was axed as manager and replaced by Gianfranco Zola.

Rowett’s departure means Carvalhal, who has only been in charge of the Owls since June 2015, is the fifth-longest serving manager in the Championship. Only Chris Hughton, Simon Grayson, Alex Neil and Mick McCarthy have been in their posts longer than the Portuguese chief.

Carvalhal said: “I never stay happy when a colleague is fired or leaves a club. I don’t like these kind of situations.

“When a manager wins a game, everybody wins. The kit man put the balls in the correct position, the physios did fantastic work, the players did fantastic, the assistant coaches were very good, the fans were amazing, the chairman is fantastic. Everything is perfect.

“When you lose, it is just one person who is responsible and that is the manager. Forget everybody else.

“It is the manager’s responsbility all the time so I can’t be happy when a colleague loses their job.

“Probably 75 per cent of the time it is not correct (for them to be axed) as sometimes it is down to the recruitment not being good or there are other problems inside the club.”

Fifthteen of the 24 second-tier clubs have changed their boss this calendar year.

“When I came to England a year and a half ago, I arrived here thinking Sir Alex Ferguson stayed a long time with Manchester United but the reality is completely different now,” he said. “I think the average length of a manager staying at a club is one year and three months. It is very bad.

“Sometimes we talk about evolution in society and football but to me this is the opposite.

“It is not going in a good way in England. England was an an example to all the world about the stability of coaches and thinking of the future and now they are changing these kind of things in a negative way.

“They used to give time to the coaches to develop the team which was a positive. But if things carry on in the same way, England will be like other countries and I don’t think that’s good.

“It is getting closer to my natural habitat. I came from a habitat where if you lose a game away and next game if you lost at home you would be fired.

“You can’t progress a team and a club if you are changing a coach every year because you start all the time from zero.

“[Aitor] Karanka and [Sean] Dyche are good examples of managers who’ve all had time and had success. Sometimes to build things you have storms when you travel.”