Who is the crew chief for Dale Earnhardt Jr.?

Dale Earnhardt Jr's 2010 Pit Crew:

Crew Chief - Lance McGrew

Engineer - Chris Heroy

Gas Man - Chris Fasulka

Jackman - Mark Jacobs

Front Tire Changer - Adam Emmert

Front Tire Carrier - Ben Fischbeck

Rear Tire Changer - Kip Wolfmeier

Rear Tire Carrier - Matt Myers

Catch Can - Jason Dalrymple

Pit Crew Coaches - Mark Mauldin & Walt Smith