West Ham boss Sam Allardyce believes Sunderland have made a poor decision in sacking Paulo Di Canio after just six months in charge.
Di Canio was axed from his position following Sunderland's 3-0 defeat at the hands of Steve Clarke's West Brom at the weekend.
"If it doesn't go well they seem to be making a knee-jerk decision to change the manager," said Allardyce, who left Newcastle in 2008 after eight months by mutual consent.
The past four Black Cats' managers have failed to reach 100 games for the club.
The likes of Martin O'Neill, Steve Bruce, and Ricky Sbragia preceded Di Canio in getting the chop early before seeing a centenary of fixtures, a landmark that will be reached by Sam Allardyce tonight, when his West Ham side face newly promoted, Cardiff City.
"They've been pretty quick at pulling the trigger recently, in the last three managers," continued the ex-Bolton boss.
"I find it very difficult to see where the logic lies in it, particularly when there has been a full clear-out [of backroom staff].
"To go through that process in a particular season which has got under way is a huge task for whoever is going to be the next head coach."
The appointment of the Italian was controversial, but after a 3-0 victory over rivals Newcastle United, he showed signs of being able to take Sunderland a long way.
Managers like Arsene Wenger, Brendan Rodgers, and Andre Villas Boas have all had some pretty bad spells with their respective club, but are still at the reigns, and have all had great starts to the season. This begs the question, are the members of the Sunderland board becoming too impatient?
"The man says he's not going to change and I think you are what you are," Allardyce said of Di Canio said.
"You've got to be true to yourself; if that's your style, that's your style. If it doesn't work you've got to hold your hands up and say, 'it might have worked at Swindon but in the Premier League it hasn't worked'.
"You have to look at yourself and say, 'if I get the next job do I do it like that or don't I?'"
Former Blackburn boss Allardyce believes managers should be given more time to settle in at clubs but fears management has now become about just surviving.
"What you fear for is the sack, obviously, and it is a survival game."
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