Let me assure you that when McCready speaks, *everybody* listens -- and hangs onto his every word.
As far as *public* speaking, my only experience with that was sitting in the booth with Keith and J.R. Calvert at the Derby City Classic. I was sitting on pins and needles wondering what was going to come out of Keith's mouth next.
He's definitely got the gift of gab. Whether it's good for commentating would be in the ear of the beholder.