Sam AllardyceThe sacking of Sam Allardyce is the latest in a long line of new owner, bye bye manager stories which have blighted the Premier League in recent years. From Mark Hughes at Manchester City to yesterday's news it seems that any manager may as well pack his bags just after shaking hands to welcome his new bosses now rather than bring out his Christmas list of things he would like in the shape of new players. But is it really the best policy, should the man at the helm be given time to prove himself to his new paymasters?

The most high-profile example of changing a manager after a takeover came in the shape of Claudio Ranieri's time at Chelsea. After purchasing the club for millions of roubles, Roman Abramovich decided that he didn't care much for the likeable Italian and preferred his team to be bossed by a little known and modest coach called Jose Mourinho. The rest as they say is history as the self-proclaimed Special One delivered trophy after trophy over a number of years but was dispensed with following continued failure to win the Champions League – something he has since done with Inter Milan, sorry Roman!.

Since then, no-one who has been installed as manager following a takeover has achieved anything like his success. Roberto Mancini is in contention this season after a year in charge with his expensively assembled yet troubled Manchester City squad but until the Italian lifts silverware and the Blue Moon rises over Manchester, success in this country following a takeover will still be the preserve of the Special One.

And with Chris Hughton leaving Newcastle and doubts persisting over Roy Hodgson at Anfield, the question remains, should a change of manager be agreed during takeover talks? Certainly the chicken farmers in charge of Blackburn Rovers seem to think that disposing of Big Sam will enable them to deliver Champions League football and a style of play resembling Barcelona and Arsenal at their very best.

The reality of course will be very different, a £5million transfer pot and players such as Ryan Nelson, Christopher Samba and El-Hadj Diouf mean any new manager should be a success if they keep Rovers in the Premier League and play winning, if at times not exactly pleasing, football. The worry for Rovers fans now should be that the Venky boys will simply chop and change managers like workers on the production line in their factories if it does not come off.

And we all know where that approach got Newcastle United, where funnily enough the manager replaced just after Mike Ashley increased his stake in the club was... Sam Allardyce.