Former F1 driver Alexander Wurz has turned down the chance to become Manor's team principal.
As revealed by Motorsport.com last weekend, owner Stephen Fitzpatrick discussed with Wurz a role at the team following the news that team boss John Booth and sporting director Graeme Lowdon would leave Manor after this season.
Wurz announced his retirement from racing after this weekend's round of the World Endurance Championship in Bahrain.
"After a period of consideration, I have informed Stephen Fitzpatrick that I have taken the decision not to make myself available to Manor," Wurz told BBC Sport.
Manor has recently signed former McLaren sporting director Dave Ryan as its new racing director.