"I think it was clear that it was so important for us".
Pochettino handed a league debut to former PSG defender Serge Aurier, who came on after 70 minutes and caused Swansea trouble down the right flank and had a questionable penalty claim turned down.
Dele Alli returns to the team after missing the Champions League game. But another two points dropped on Saturday evening means the doubts will creep back in.
"I am a coach not a doctor", Pochettino said.
Spurs are still awaiting their first Premier League win at their temporary home and were unable to build on Wednesday's Champions League success against Borussia Dortmund.
Harry Kane went closest when he rattled the bar during a second half in which Spurs had good chances to find the net.
With Spurs having picked up just 11 points from their first nine games under the former Southampton boss in 2014, Kane - playing second fiddle to Roberto Soldado and Emmanuel Adebayor at the time, struck a deflected free-kick victor in the 90th minute of a 2-1 triumph at Aston Villa.
"But I have a nice feeling about this group and I think it will get stronger".
The introduction of Fernando Llorente, a significant aerial threat, in the 74th minute made sense as the visitors sank even deeper, but it ultimately was not to be for Tottenham. They have lost both their home matches to Manchester United and Newcastle but are yet to taste defeat in four games on their travels.
The Spanish hitman was courted by Chelsea boss Antonio Conte for over six months before he chose to leave Swansea for Spurs.