Manuel Pellegrini was "lucky" to inherit a strong Manchester City side and should be winning titles every year, says former boss Roberto Mancini.
City are behind Chelsea in the Premier League and trail Barcelona 2-1 heading into the second leg of their Champions League last-16 tie, with Pellegrini's future the subject of much speculation.
"Pellegrini was lucky because he got a strong team," Mancini told CNN.
"I think City should and must try to win a title every year."
Mancini, now in charge at Inter Milan, was sacked by the Blues in 2012, a year after winning the Premier League title.
But despite the Italian's comments, Pellegrini - who has spent £172.1m on players since he was appointed City boss in June 2013 - insists he is not feeling any pressure.
"I respect all opinions but I don't think my seat is in danger," said the City manager.
"We're second in the Premier League, still playing strong and are going to fight to prove it."
Pellegrini, who has a three-year contract at the Etihad Stadium, enjoyed a successful debut season in England, winning the Premier League title and the League Cup.
Pellegrini's side have won only three of their last 11 games in all competitions and defeat to Burnley on Saturday left them five points adrift of Chelsea in the Premier League title race.
Pellegrini added: "It is very important for our team to prove we are one of the best teams in Europe but the only way to prove it is to beat a big team. That must be our mentality and this is our test."