Chip Kelly has hands, but as an NFL head coach, he's so busy, sometimes his four limbs are all occupied. So when his headset gets slightly too far from his mouth for him to properly communicate with his fellow coaches, he uses his extendo-tongue to adjust it.

So wait, Chip Kelly is

a) known for wearing various shades of green

b) known for lightning-quick, unexpected attacks

c) best defensive strategy is hoping nobody notices you're there

d) has a tongue that sometimes extends out of the mouth to perform various tasks

Chip Kelly is a chameleon