Spurs ended last campaign in third place in the Premier League table, but they were not entirely satisfied with that finish.
Tottenham had looked to be in title contention, but they collapsed over their last few fixtures - with a final day defeat against Newcastle United seeing them drop below their rivals, Arsenal.
Tottenham surpassed expectations to even get into the Champions League, but Pochettino insists that nobody at White Hart Lane felt pleased at the end of last term.
“I think we felt very disappointed at the end of season,” the Argentine boss said.
“Our objective when we got the option (during the season) was to win the league then we finished third which was the challenge from the beginning of the season.
“I think we need to be open to improve and learn. Every experience, it’s important to learn.
“A lot of positive things we need to take from last season. Maybe we must compete better during the same period.”
Tottenham are once again considered as outsiders to win the Premier League, with four teams ahead of them in the betting odds.
Spurs have the added complication of having to compete in the Champions League, alongside their domestic demands this term.
Tottenham have added two new players so far this summer - with Vincent Janssen and Victor Wanyama joining the North London side.
Spurs get their campaign underway with a match against Everton at Goodison Park.