- David Newton, ESPN Staff Writer
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CHARLOTTE, N.C. -- Jay Guy will replace Roy McCauley as the crew chief for the No. 12 Dodge driven by Brad Keselowski at Penske Racing in 2010.
Guy, 36, recently resigned as the crew chief for the No. 78 at Furniture Row Racing.
"I am really excited to join Penske Racing and I'm looking forward to the opportunities that lie ahead," Guy said in a team release. "Over the years, the No. 12 team has had a lot of success, including winning the 2008 Daytona 500, and we certainly want to build on that tradition of winning.
"Brad is one of the most talented drivers in NASCAR and we will work together to develop his skills and make this team the best it can be."
Keselowski also will get a new crew chief in the Nationwide Series in Paul Wolfe, who was the crew chief for the No. 11 CJM Racing team with Scott Lagasse, Jr., Denny Hamlin and others this past season.
"Both Jay and Paul have a lot of experience throughout all levels of motorsports competition and they each seem to get the most out of the teams and drivers that they work with," Keselowski said.
McCauley, who has been a crew chief at Penske the past four seasons, will be reassigned to other duties.
Penske continues discussions with candidates for Kurt Busch's new crew chief. Among the candidates is Steve Addington, who was replaced as Kyle Busch's crew chief at Joe Gibbs Racing with three races remaining in the season.
Keselowski competed in 15 Cup races this past season between Hendrick Motorsports, James Finch and Penske Racing. He won the spring race at Talladega for Finch and had three other top 10s.
David Newton covers NASCAR for ESPN.com.