Chelsea legend Gianfranco Zola has hinted at unhappiness with the way he was treated by West Ham United last season.
Zola made it clear he will only manage a club with an owner or chairman who does not interfere in team matters.
"I miss certain things about management. I don't miss others," Zola told the Daily Express. "The manager has to be left alone because some decisions that he takes are dictated by things that only he can see.
"If I go back to manage in the Premier League I will make it clear beforehand that I want to be left to manage."
The Hammers are bottom after the 1-0 defeat by Birmingham but Zola said: "I'm sure West Ham will pull out of relegation trouble because they have got enough in their bag to do it."
