Pochettino believes Tottenham's fate in the Champions League next season will depend on how they strengthen their team this summer.
Tottenham boss Mauricio Pochettino, who was recently upgraded from coach to manager by the north London side, says they need to buy players this summer as they will be involved in Europe's elite competition.
"We need to improve our squad - this is very clear," Pochettino said, as Press Association quoted.
"Me, our supporters, our players, our squad - we are all agreed that we need to improve. It's a different level to play in the Champions League.
"To play in the Champions League, the Premier League and the cups, it's important to have a very good balance. We need to improve our squad.
"Replicating this season again is our challenge. For that, we need to improve our squad, to reduce the gap. The Champions League demands a lot of energy, more than the Europa League."