Pochettino improved his squad during the summer by spending big to sign defender Dejan Lovren, midfielder Vincent Wanyama and striker Dani Osvaldo.
The Argentinian has been rewarded with a fine first half of the season, which saw Southampton challenge at the top end of the table before slipping back to ninth in recent weeks.
And, rather than pep up his squad with fresh additions in the New Year, Pochettino will instead put his faith in the young players already at his disposal at St Mary's.
"We're not really concerned with the transfer window," said Pochettino ahead of Sunday's game against Everton.
"We're really happy with the young players that are part of this team.
"We're really happy that they are partaking in training sessions with the older players and that they're getting a feel for what it is to be in the senior side.
"That gives us a very important equilibrium, a balance in the team, and we're really happy with their contribution, so we're not really looking at the transfer window."