"If you want to be one of the best teams in the world, you have to have the best facilities", he said.
"We need to have faith".
"I am a very positive person and I am going to try and deliver in my job".
But Pochettino is not complaining about lack of funds and insists he knew what he was getting into.
The Argentine has transformed Spurs since taking charge in 2014 by ensuring regular involvement in the Champions League, but recently saw two chances to win his first trophy for the club slip away in quick succession.
Spurs are now third in the table, nine points behind leaders Liverpool.
"I love my job, I love my job".
Pochettino added: "I love my job and of course I love a big challenge". I am going to going to stick with the club until the end to help the club achieve all they want.
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"We are victims of our own success, the club was in a different level. But we know it's a tough task and we need time - time and consistency - and we're at the start of that, a new era of the club".
"The principal thing that we need to clarify, our fans need to know, when you ask me if I agree to win a domestic cup will help us to achieve the last level, I can not agree". They are the core and the soul of the club and this is a massive moment. It's clear that it's an attractive country for football nowadays, but I think with more time and in many more years it'll be even more attractive.
Pochettino is not optimistic that Tottenham will sign any players before the end of the January transfer window.
Asked about transfers, he told a press conference: "A few days ago I was optimistic about a few options that we could sign, but today not too optimistic".
"Virg was a little bit ill, but he trained yesterday and will train today, so we will see", Klopp said.
"It's not up to me to discuss whatever anyone else says, I am just saying that we here at this club, we are looking to win trophies".
"That is my responsibility as a manager". If we don't sign it is not because I don't want to sign it's because we are not capable to find player that will help us. "But to sign a five-year contract does not mean you'll be here for ever".