"A blowhard.

That's what Jon Gruden is, according to the man who used to be in charge of the NFL's officials. Then Mike Pereira said Gruden was a loudmouth as a coach for good measure.

Given all the things a football official gets called, that's pretty tame. But there's also something that rings so very hollow about Pereira taking to his pulpit at FOX Sports this week to lob schoolyard taunts at Gruden.

Now, Gruden might be disrespectful of officials, as Pereira said, and the former coach has shown himself ignorant of the rules at times. During Monday night's game between New Orleans and Atlanta, Gruden didn't recognize the difference between a hit to the head and neck area of a defenseless receiver, which is a penalty by rule; and a hit to the back of a defenseless receiver, which is not."