New crew chief for Riggs.

Sophomore Nextel Cup driver Scott Riggs will have a new crew chief for this Sunday's Pocono 500 after a major shake-up within the MB Motorsports organisation.

Rodney Childers, who has been the car chief for Riggs' #10 MBV Motorsports Valvoline team since the beginning of the 2005 season will replace Doug Randolph, who has been promoted to the position of race co-ordinator and driver development manager.

Ryan Pemberton has been promoted to team manager and will oversee the #01 U.S. Army and #10 Valvoline teams. He will continue as crew chief on the #01 Chevrolet driven by Joe Nemechek.

Frank Stoddard has been promoted to research and development manager and will continue as crew chief on Boris Said's #36 Centrix Financial Chevrolet for MB/Sutton Motorsports.

"By making these promotions with our team personnel, we believe the entire organisation will be stronger than ever," said Jay Frye, CEO and general manager of MB2 Motorsports. "We have quality individuals leading the restructured departments and the changes will only enhance our programme going forward as a multicar operation with a one team approach."