Redknapp believes Tottenham have spent money without any reward since he left.
The English coach said: “Tottenham have been a major disappointment since I left. They’ve been carried by three or four of the kids who have done really well. The signings, almost to a man, have been a disaster.
“All that £120m or whatever they spent from Bale and Modric has been pretty much wasted really.”
Whilst Redknapp’s words may be a damning criticism, it is hard to deny that he is wrong.
Spurs had no choice in the sales of Modric and Bale, with real Madrid going all out to sign them, and the North London outfit did well to secure the high transfer fees for them.
However, since then, the Lilywhites have proven to be disastrous in the transfer market, wasting almost the entire income on players who have not impressed.
The likes of Roberto Soldado, Etienne Capoue and Vlad Chiriches all look likely to leave the club this summer after failing to establish themselves, whilst Erik Lamela is only just starting to have an impact.
The only signing who has properly proven his worth is Christian Eriksen, but his impressive ability is not a great return on the outlay made in the transfer window.
It is widely expected that Tottenham will undergo a new-look transfer policy this summer to recover from all the mistakes they have made in the past, but it is not likely that many will forget their failures for a number of years yet.
Redknapp has once again brought them up, and although he is likely criticising the club due to past treatment of him, he highlights an issue that Spurs need to overcome if they are to properly challenge at the upper end of the Premier League table.