The North London outfit have come under fire following Sunday's Premier League encounter, which resulted in a 6-0 hammering from Manchester City.
Redknapp, who was sacked by Spurs and replaced by Andre Villas-Boas last year, believes that the club have struggled to cope with the loss of Gareth Bale, despite recruiting seven new players in the summer.
"For the first time, Tottenham did look like a bunch of strangers on Sunday," Redknapp told talkSPORT. "They have got lots of attacking players. They have almost become overloaded with the same type of player.
"In the past, when they had Gareth Bale, he was such a fantastic talent that he would pull them out of trouble.
"There were lots of games where there were two minutes to go and suddenly a bit of magic from Gareth Bale and three points were in the bag. Well, they have lost that magic now."
Tottenham are currently ninth in the Premier League table.