Southampton striker Ricki Lambert has been impressed by new manager Mauricio Pochettino.
The new man is still searching for his first win after two draws and a defeat. Those results have left Saints three points clear of the drop zone.
Lambert said: "The new manager has been great and you can see since he has come to the club he wants to make things happen.
"The chairman is very ambitious and Southampton is going to be a very exciting place to be over the next few years.
"It is not unrealistic to try and challenge for the top four over the next three years. That is what we have to aim for.
"Three years ago a lot of people would have laughed in our faces if we had said we'd be in the Premier League.
"We have got to keep that momentum going and keep moving forward. I am very confident we will stay up."