And despite a storming start to the season at his old club Bolton, Allardyce admits the fear of dismissal has already been giving him plenty of sleepless nights.
Allardyce said: "I hope the welcome is bigger at the end of the game than the beginning. The Premier League is a cruel place and there is no guarantee things will go your way.
"That is why it is so exciting but also why there is a huge amount of pressure on us. You can turn things around or just as quickly things can start to go a bit sour.
"We all live in fear of the sack. That is what drives us on more than anything else. We all want to bring success to our clubs but we all want to avoid the sack."