It all started so well for the hosts with Tottenham taking the lead thanks to Son Heung-min. But it swiftly went downhill.
Robert Lewandowski scored twice and former Arsenal ace Serge Gnabry netted four as Bayern Munich ran riot.
Pochettino was already under pressure and had regularly called for more support from his chairman.
But after a humiliating Champions League defeat, the boss is determined to stick it out and wants to do so with his whole squad.
“I don’t need too much time to explain,” Pochettino said.
“We played 30 minutes well, started well, pressing high. But we were unlucky that we conceded in the last minute of the half.
“They were very clinical. After we scored the penalty for two we had chances to score the third. But from the 83rd and 88th minute we conceded three more goals.
Tottenham were thrashed by Bayern Munich in the Champions League with Bayern Munich winning 7-2 in London.
“In football it can happen. Every single touch went in. We are very disappointed and very upset but we have to stay together. I think we are strong in our mentality.
“Maybe you are bored about my speech but football is today not yesterday.
“It is always is about the show. You have to do it today and tomorrow. It is not about experiences and what happened three months ago.
“We are disappointed. Every single touch from Bayern was clinical. They scored with every touch. It is tough to accept. You have to move on.
“This type of situation you have to face. It is tough and you need to be strong and keep going.
“Stay together, help each other and be all together. When you receive this type of result it is important to bounce back and believe in yourself. It is the only way to recover.”
Bayern Munich oozed class in London with some outrageous skill and incredible finishes.
Lewandowski showed his trademark prowess while Gnabry showed Arsenal just how big a mistake it was to lose him.
BT pundits oozed over the German as his pace and directness tore Tottenham to shreds.
Gnabry became the second player to score four goals in a single half of a Champions League match with Luiz Adriano also managing the feat in October 2014.
Tottenham had been awarded a chance to get back into the game at 4-1 when a penalty was awarded, which Harry Kane slotted home.
Though three goals in five minutes killed any hope and left former Spurs winger Chris Waddle fuming with Pochettino’s tactics.
Waddle said: “Tottenham’s defence is not good enough. It needs a good overhaul. It needs a complete change. Maybe even go three at the back.
“This is not working for Spurs, it’s not been working for weeks but this system is wrong.
“The tactics are wrong. Bayern Munich have been able to take the whole back four out of the game.
“Tottenham going forward are quite good – you have so many players there who can score goals but the forwards cannot win the games on their own.
“Tottenham played so well for the first 20 minutes but then they got tired and Bayern Munich attacked. They completely took them apart.”