Coach? What Coach

In reading the account of the comedy of errors that ending the Tennessee-LSU game, I was struck by this:

LSU coach Les Miles had already tossed his headset aside, cutting him off from communication with offensive coordinator Gary Crowton, while he sought out an official on the field to see what the flag was for.

“I had to call a play because I had nobody to talk to,” Miles said.

Have we gotten to the point where it’s unusual for a head coach to call a play?