Dutchman Jol was ruthlessly axed by Spurs five years ago despite leading them to fifth in the Premier League.
And AVB said: "He is well remembered at the club. But he shows the expectancy here is very high. The club has changed managers a lot in recent years.
"It is very difficult for managers these days. We have to prepare the future but we have to take care of the present. I learnt that lesson last year."