Tottenham finished third last term, but have so far failed to sign any players this window.
In comparison, Manchester United have spent £80million, while Manchester City paid £60m for Riyad Mahrez to take him from Leicester.
While Pochettino’s men are moving into a new stadium, the Argentine is yet to deliver any silverware.
And he has admitted his ambitions have to be loftier than just finishing in the top four.
“If some people believe the manager of Tottenham doesn’t want to win they are not right in their minds,” Pochettino told the Daily Mail.
“I’m here to win. The reality is to win and to have the argument about whether you have the tools to win is a different matter.
“We have had massive success at the club, getting Champions League for a third year in a row.
“But maybe that is not enough and maybe we need to change certain things because for me it is not enough.
“I want to challenge and fight to win things until the end, that moment when my chairman Daniel Levy says to me, ‘Mauricio go home and find another project’.”
Tottenham get their Premier League campaign underway with a trip to Newcastle on Saturday (12.30pm).