British Swimming have confirmed Michael Scott will continue in his role of national performance director for another four years through to the 2016 Olympics.
But head coach Dennis Pursley will return to his native United States for family reasons following the London Games.
Scott, who joined British Swimming in 2007, led Britain's swimmers to a successful Beijing Olympics in 2008.
He said: "While our immediate focus is on the challenges and opportunities of the home Olympic Games, I'm delighted to be given the opportunity to continue to work with British Swimming over the next four years as we strive to continue our good performances on the Commonwealth, World and Olympic stages."
British Swimming chief executive David Sparkes added: "Scott has transformed British Swimming since he arrived in 2007 and we now have more talent in depth than at any time in our history."
Pursley insists his focus remains on the Olympics, despite the announcement of his departure.
He said: "Although I am not looking past the Olympics, family commitments will require that I return to the US after the Games.
"I will do so with many fond memories of my British tenure and with the assurance that a bright future is on the horizon for British Swimming."