Mary Barra to take over as GM CEO

9:04 AM ET Tue, 10 Dec 2013

CNBC's Phil LeBeau reports Mary Barra will take over as CEO of General Motors on January 15th as current CEO Daniel Ackerson steps down to deal with family health matters. The "Squawk on the Street" crew discusses the changing of the guard at General Motors as Mary Barra is set to succeed Dan Ackerson as CEO.