The Italian is expected to leave Stamford Bridge at the end of this season as his relationship with the club's hierarchy continues to disintegrate.
Conte was criticised for his defensive tactics in Sunday's 1-0 loss to Manchester City. And Redknapp has suggested Conte should go all out if it's to be his last season in charge of the Blues.
"Not only does Conte risk losing his players and tarnishing last season's triumph, but he is also damaging his reputation," Redknapp said.
"What chairman would want to hire the Italian on the basis of this surrender at City?
"Chelsea's season is in danger of petering out into fifth place.
"If Conte is to depart at the end of the season, then he should go out swinging punches like a champion. Not like a man resigned to his fate."