Richard Petty Motorsports officials announced that Greg Erwin has joined the team and will replace Mike Shiplett as crew chief for the #43 NASCAR Sprint Cup Series entry driven by AJ Allmendinger. Prior to joining Richard Petty Motorsports, Erwin held the crew chief position with the #16 team at Roush Fenway Racing. Erwin joined that team in May 2007 and during his tenure at RFR, led Biffle to five victories, 36 top-five and 66 top-10 finishes. Erwin's team made the Chase for the Championship three times, finishing as high as third in the year end point standings.(RPM PR RELEASE)

That should stop all the Greg Irwin to RGM discussions. Great move my Richard Petty Motorsports. Using Roush engines and chasis. Should help AJ.