Crew chief Miller resigns, Wolfe to lead No. 71 team

MOORESVILLE, N.C. -- TRG Motorsports on Monday announced that Jason Miller has resigned as crew chief of the No. 71 Chevrolet driven by Truck Series rookie of the year contender Donny Lia.

Jon Wolfe will take over as crew chief. Wolfe joined TRG Motorsports in May and has served as the team's general manager. Wolfe came to TRG Motorsports after leading the Research and Development program at Robert Yates Racing.

Lia is 20th in points with one win among two top-10 finishes in 12 starts. He is second in rookie standings, 16 points behind Colin Braun, through 13 races.