But he has stated that he is over it and was happy to see Jose Mourinho take the job.
Furthermore, the Argentine is on the lookout for a new position with several clubs a possibility.
Pochettino was making an appearance on Sky Sports as Leeds faced Leicester on Monday night.
Speaking to Jamie Carragher, the Murphy-born tactician opened up over his time at Tottenham - where he spent five years.
He took them to their first-ever Champions League final but just months later he was sacked.
It followed a shoddy start to the season amid reports of trouble behind the scenes.
In a whirlwind 24 hours, Mourinho was in the hotseat before Pochettino could clear his desk.
One thing the Portuguese coach has had is financial backing - something that could not be explicitly said for his predecessor in his latter years at the club.
But that does not bother Pochettino, although his sacking did rankle for a while.
When asked if Mourinho's spending has bothered him, he said: "No, no. I think it's fantastic for Tottenham.
"After one year of course I was disappointed, a little bit upset, of course not happy when you leave a club.
"After five and a half years the relationship is massive with staff, players, fans. But at some point I understand football."
The Special One joined within hours of Poch's dismissal but he has insisted there are no hard feelings.
He added: "Who replaced me is a good friend, who treated me very well.
"When I was Espanyol, he was at Real Madrid. He invited me to a Champions League game against Ajax. I love Tottenham and I know Jose.
"This journey we missed winning a title. That would have been the cherry."
Manchester United have been touted as a potential destination for Pochettino, with Ole Gunnar Solskjaer coming under mounting pressure this season.
The Red Devils find themselves 15th in the Premier League after their weekend loss to Arsenal.