Just weeks after being announced as David Reutimann's crew chief for the 2007 season, Larry Carter has left Michael Waltrip Racing and joined Roush Racing as Jamie McMurray's new crew chief.

Apparently disappointed at not being offered the position of crew chief for Dale Jarrett and the #44 UPS Toyota team, Carter confirmed his intentions to leave the expanded three-strong MWR operation to become McMurray's fourth crew chief in less than a year with the #26 (was #97) team.

Rookie driver Reutimann is now left without a confirmed crew chief for a season that is rapidly approaching while Michael Waltrip's team have to find an established name to assist an inexperienced driver outside the top 35 in team points and with two major corporate sponsors behind him.