With over £100 million spent on the likes of Roberto Soldado, Erik Lamela, Paulinho and Christian Eriksen, the former midfielder feels the onus should be on the players' shouldersFormer Tottenham midfielder Ossie Ardiles believes his former team's signings, not their managers, are the problem at the club.
Andre Villas-Boas was sacked in December last year and Tim Sherwood is expected to be sacked at the end of the season with Tottenham likely to finish sixth in the Premier League.
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"When we started this season we were full of optimism, but somehow it has been a very disappointing season," Ardiles told talkSPORT.
"I believe that the players we have bought in this season have been the problem. They are not performing the way we expected. I don't want to name names, but basically all the people we have bought.
"This is a serious, serious problem.
"At the end of the day, whoever the manager is, AVB [Villas-Boas] earlier in the season and later on Tim, there is not a lot you can do with the kind of players we have right now.
"Whoever comes in, or if Tim stays, he has to make a big rebuilding of the team."