One has to feel for David Moyes; he is already being written off by some despite only just arriving at Manchester United.

Granted, it hasn't been a great start to the season, in fact, it's been Manchester United's worst start to a Premier League, but there have only been a handful of games and there is still a long way to go before you can start writing them off.

However, Manchester United's owners will be worried about whether the season does become a write-off and must do all they can to make sure it does not, as this season is the most crucial in years.

It would be a shame to see Moyes fail to make a success of being Sir Alex Ferguson's successor, but we all know there is no room for sentiment in the high-stakes environment of the Premier League.

However much good will you have for the former Everton boss, the example of what happened across the Merseyside divide must serve as a warning to the Glazers and how to react to any sign that things are taking a turn for the worse.

Liverpool had a similar era of domination in the 1970s and 1980s but the departure of Kenny Dalglish as manager, for understandable reasons, was a shock and the then English champions failed to replace him adequately.

It was the last league title they have won and only the most one-eyed, delusional supporter of the Anfield club would claim they have got anywhere near such a level since.

Domination in football normally works in cycles, with certain teams rising above their rivals for a few years before another team comes along to take their crown - it just doesn't last forever.

The departure of the man that was the crucial component in such a long period of success is going to lead to a difficult period and it is hard to argue that Ferguson's retirement is not a natural moment for a decline to set in.

Moyes was seen as a sensible approach to a replacement for his fellow Scot, bringing a kind of continuity with him being tipped for the job by his successor, but none of this should deter Manchester United from being ruthless if things continue going wrong.

The Red Devils know they need to avoid a Ferguson hangover and this season could well be the most crucial period for doing so; there is a real danger of a new mentality seeping into Old Trafford that doesn't quite meet the standards set by British football's most decorated manager.

It is not only Manchester United where attitudes can change, but their opponents will not be so fearful when travelling to the Premier League champions now the great man has gone.

Most people want Moyes to be given time, but Manchester United won't have much of it to avoid emulating Liverpool.

Topics:
Football
Premier League
Liverpool
Manchester United