Mauricio Pellegrino believes the experience of their season-opener against Swansea City can stand them in good stead, as West Ham visit St Mary's this weekend.
Saints produced a dominant performance last Saturday against the Welsh side, but could not find a way through, as they had to settle for a 0-0 draw.
Pellegrino explained that the focus in training this week has been on breaking the opposition down, and he is optimistic they are heading in the right direction.
"I think we are working really well," he said. "We've got three games this week. We have to try to keep going and keep improving and to use our experience from Swansea and use everything we did in this game to keep learning and to use this experience for the next few games."
mauricio pellegrinoit's the most difficult thing in modern football, to attack ten players behind the ball.
On what the squad has been working on this week, Pellegrino said: "Especially to keep going and controlling the spaces when you are in the opposition's end of the pitch.
"Try to be more precise in the final third, try to do some movements when your rival is deep. It's the most difficult thing in modern football, to attack ten players behind the ball.
"Today, in five or six seconds, one team has to really drop deep to attack and this is something that we have to control and we have to keep going."