Bob Osborne, Carl Edwards’ crew chief for his Sprint Cup debut in 2004, stepped down from his role at Roush-Fenway Racing due to health concerns. Chad Norris was named the crew chief for the No. 99 team. Osborne and Edwards combined for 18 wins and two runner-up finishes.

“I have had the pleasure of working with Carl Edwards for the past nine years and, during that time, my focus has been building a championship-caliber program,” Osborne said. “I’m proud of the 18 wins we’ve had together in Sprint Cup Series competition and our two second-place points finishes. At this time in my life, however, concerns with my health have necessitated that I change my role within the organization. This transition is not an easy one, but I’m thankful to have the full support of Jack, Carl and the entire organization. I also have every confidence in Chad Norris, and I look forward to working with him as we continue to pursue a championship in 2012. I also appreciate the privacy and respect that the community will give me and my family during this difficult time.”

Edwards said he was grateful for what Osborne did for him as a driver. “I cannot say enough good things about Bob Osborne,” Edwards said. “He is without a doubt one of the smartest guys in the sport. I’m also appreciative of the fact that he’ll continue to be a resource for me and our team as we focus on these final races.”

Osborne will stay on with Roush-Fenway as a senior member of the organization’s management team and steering committee.