 Sounds like a lion coming up, but that is a NASCAR car race car. Welcome back to CBS Mornings. NASCAR drivers, folks behind the wheel there, have just six races left to earn a spot in this year's playoffs. Behind every driver, though, is a crew team making sure the car is gassed up and the tires are changed, and they do it in just a few seconds. Skyler Henry went to North Carolina to see how it's actually former athletes taking a larger role in those pit crews.