Andre Villas-Boas believes that only Sir Alex Ferguson and Arsene Wenger are safe from getting the sack this season if their teams underperform.
Villas-Boas has performed well since taking over at Tottenham in the summer, just months after his unceremonious sacking from Chelsea.
The Portuguese coach was dumped after just eight months in charge at Stamford Bridge before taking up his post at White Hart Lane – but will have the chance to seek revenge on Saturday when the two teams meet.
Villas-Boas admitted there was no guarantee that he would keep his job if he missed out on delivering Spurs to Champions League football this season, and believes only two managers in the Premier League can under-perform this season without fear of the sack.
“In the end it reflects the philosophy and visions of the owner.
“I think there is one important thing, in this country we see successful morals in Arsenal and Manchester United, in Arsene Wenger and Alex Ferguson.
“All other managers don’t have the benefit of the doubt. They can’t go through one bad year where they almost reach the objective. They must reach the objective in the first year."
Villas-Boas has guided Spurs to four successive Premier League wins, a run which has taken them up to 5th in the Premier League table after a slow start.
However the former Porto coach insisted his job in north London isn’t just about ensuring success this season, but ensuring that Spurs can stay near the top for the future.
“We have to make sure we have laid the foundations to do it in the future, and this is a question only a club’s philosophy can answer, and that’s something the club’s owner is responsible for,” he commented.