Football is a result based business and that is especially true in the premiership. The league has become popular all over the world and the revenue it generates has gone through the roof. It is no surprise that the expectations of supporters as well as boardroom members have been raised in the same way.

Because so much revenue is at stake in premiership football managers are coming under increasing pressure to deliver. Many managers of varying levels of experience have been sacked or have parted company with their club by mutual consent. In most cases this is down to one thing and that is usually because of a poor run of results.

For a long time, it was the football supporters who would demand the head of a manager if they were not happy with the team's results. While this is still the case, we have also seen more football club chairmen begin to adopt a ruthless approach when it comes to wielding the axe.

Whenever a premiership manager loses his job there is no shortage of critics who speak out in defence of the person concerned. They also criticise the sacking itself and call for managers to be given more time to finish the job they have started. The critics have a point but football club chairmen and the fans only have a limited supply of patience and once that is exhausted the manager is living on borrowed time.

Alex Ferguson is the classic example of a boss who was given plenty of time to build a successful football team. It took nearly four years for him to win a trophy and many fans were initially unimpressed. Under his guidance Manchester United went on to dominate English football and secured a famous treble winning the Premiership, FA Cup and Champions League.

Chairmen have to decide carefully the best time to dispense with a manger and bring a new man into the club. The halfway point of the domestic season is sometimes a popular choice. This is because it gives the new manager ample time to work with the players at his disposal. It also allows new players to be signed to strengthen the squad and transform both form and results.

Because premiership football is so popular, managers will always be under pressure to deliver results. Clubs are run like companies these days and poor performance is not rewarded. The responsibility usually stops with the manager if success is not forthcoming. If a team is not performing on the field and losing matches, the manager ends up losing his job.

The author contributes to the English Football Blog website. This is a popular Football News Blog that provides soccer news and comment. It covers the premiership and English football in general. He also contributes to the Soccer Wealth website. This is a Soccer Betting Predictions service that offers profitable football betting predictions, tips and advice. Information is provided on domestic, European and international matches.