Ronald and Erwin Koeman took over at the club last summer.
Southampton have had an incredible season, especially considering the fact they lost most of their star players in the summer.
Dejan Lovren, Adam Lallana, Rickie Lambert, Luke Shaw and Callum Chambers all left the club - as did their manager Mauricio Pochettino.
In his place came Ronald Koeman, the Dutchman bringing with him plenty of ideas and players with him from his homeland - such as Dusan Tadic, Toby Alderweireld and Graziano Pelle.
He also brought along his brother Erwin for the ride.
Erwin, who himself has managed teams such as Feyenoord, RKC Waalwijk and the Hungarian national team, is working as assistant coach at the club and Ronald is pleased to have him with him.
He told FIFA.com yesterday:
“I’ve really enjoyed that and it’s made this season all the more special.
"And Erwin’s not just there because he’s family. He is a very good coach who adds something different and valuable to the staff. Plus, we’re quite different characters and our personalities are very complementary. We work really well together.”
Southampton's excellent season has petered out slightly in recent weeks. They have not won in three games and now look a long way off of Champions League qualification.
But they look set to finish in the top seven and considering the players they lost in the summer and the fact many backed them to battle relegation this season rather than fight for Europe.
The Koeman brothers have certainly worked some Dutch magic.