When Manchester United’s legendary manager Sir Alex Ferguson shocked planet football with the sudden announcement of his retirement, it was the end of the world as we know it for a generation of fans. But the subsequent departures of Roberto Mancini at rivals City and yesterday’s dismissal of Stoke City’s Tony Pulis has completed an unbelievable change in the Premier League landscape over the past season.

A total of 10 managers have left their job since the start of the 2012/2013 season . . . and long-serving Arsenal boss Arsene Wenger is the only manager left who has been in the hot seat at a Premier League club more than three years.

It is just one of  a staggering set of statistics that highlight how insane the world of football management has become in England.

Guessing who will be in charge at Premiership clubs at the start of next season has become one of the biggest talking points in the game – a dream scenario for the bookmakers. www.freebets.org.uk

Since Wenger last won a trophy in May 2005, every one of the other 91 Premier League and Football League clubs has changed their manager at least once. In fact, since Wenger took charge at Highbury back in the pre-Emrirates days of October 1996, those same 91 clubs have had a total of 838 different managers, according to figures in today’s Daily Mail.

Arsene Wenger – the Premier League’s last man standing – has been in the Arsenal hotseat since October 1996.