Arsenal manager Arsene Wenger believes Portsmouth moved too early to sack his former captain Tony Adams as boss at Fratton Park.
Adams was sacked after just 16 games on the south coast but Wenger has backed him to return stronger from the experience.
"I believe that Tony will be a very good manager and I don't believe he was given the needed time," Wenger told the club's website, arsenal.com.
"It is a big surprise that so quickly they made a big decision because when they made the decision to give him the job they knew he has worked there for a year-and-a half and they knew him.
"When you give a young manager that much responsibility you have to give him time."
Meanwhile, Wenger believes the appointment of Guus Hiddink to succeed Luiz Felipe Scolari at Chelsea, albeit only until the end of the season, will see another strong personality in charge of the Stamford Bridge dressing room.
The Arsenal boss said: "Scolari is a well-known manager and was only given six months.
"It is difficult to know what is the atmosphere inside the club when you don't live there every day, but it is still a massive surprise.
"However you know when one super manager is sacked at Chelsea, another super manager will come in.
"I rate Hiddink highly. He has been tremendously successful everywhere. He has had a long career and he's a strong personality."
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