George Friend - Photo-Graham Bell, MFC

MANAGERS - it's tough at the top…and even tough at the bottom.

The average tenure for an English football manager is 1.4 years. It's an incredibly high-pressured and stressful job and a remarkable achievement for those who successfully keep their role for over 10 years.

Currently there are only three men still at a club with this honour. Alex Ferguson has been at Manchester United for over 25 years, Arsene Wenger has spent 15 years with Arsenal and Everton boss David Moyes has now had 10 years at Goodison Park.

Sir Alex Ferguson - Photo by Getty Images

Since 1992 and the beginning of the Premier League, 160 managers have been removed. On average, that's eight managers each season who are forced to look for a new job.

In England's top four divisions 50% of clubs finished 2010/11 with a different man in charge. These facts are hardly an indication of a stable profession.

Surprisingly the length of time in charge for a manager does not reflect the league they are working in. Clubs show the same cut throat approach across a variety of levels, so whether you are the manager of York City or Manchester City, the job security remains similar in most cases.

Last season in the Premier League there were six managers sacked. Two major dismissals that stick in my mind are those of Andre Villas Boas (AVB) now managing Spurs and ex-Wolves boss Mick McCarthy.

The rapid and extensive growth of AVB's beard coincided with an increasing number of bad results for Chelsea last year before Christmas.

This unusual correlation might be interpreted by some psychologists as a subconscious defence mechanism, allowing himself to feel comfortable and confident in a time of ongoing trepidation.

With performances well below-par from a squad who seemed to question tactics, selection and general management, it was inevitable Mr Abramovich was going to act in his notoriously ruthless manner.

There was certainly an air of excitement when the Portugese manager took the job. His youthful, intelligent persona reflected that of Mourinho. Unfortunately in contrast, he had little ability to romance the media, and struggled to gain the full respect of a squad filled with big characters.

Ultimately, AVB needed something more substantial than facial hair to hide behind. On January 5 he was sacked as Chelsea manager. Still in London, he will now hope to find success and longevity at Tottenham as they look to break into the top four.

Mick McCarthy and Terry Connor - Photo by Getty Images

When Wolves sacked Mick McCarthy, the Yorkshireman seemed very humble and publicly accepted the decision.

After enjoying five successful years with the club McCarthy had achieved a lot, although I'm sure he would have been upset at the way things ended.

Even those with the least understanding of football can appreciate losing 5-1 at home to your arch-rivals, whilst in a relegation battle, does not bode well when trying to keep your job as a manager.

Peculiarly, it was events after his dismissal which raised most eyebrows and unwanted headlines.

With promises of a new big name and still time for a revival, it was understood the likes of Alan Curbishley, Sam Allardyce, among many others, were possible replacements.

Embarrassingly for the Wolves, somewhere in between interviewing and conveying any developments to the public they failed to secure their man.

Finally, out of the blue it was announced assistant manager, Terry Connor, would step in to see out the remaining 10 games. This left many fans angry and agitated.

They believed letting McCarthy go was pointless and Wolves would stand a better chance if the Yorkshireman was still at the helm.

Now the football season is underway again, will clubs be more sympathetic and lenient towards their managers? Evidently, it's a brutal and ruthless business.

Blackburn's global advisor Shebby Singh was quoted as saying that if Steve Kean loses three games on the trot he'll be shown the door.

In a tough league like the Championship anything is possible and it will be a difficult journey for not just Kean, but most bosses.

I hope this season we see manager's remain in power for longer, as they are given the correct amount of time to prove their worth.