Bayless is an idiot, but I will give him this: the Broncos have not been all that impressive this preseason. Their defense has been poor. I think Manning's arm strength may be worse than last year. Their o-line struggles a lot. Their special teams suck. They make too many mistakes like fumbling.
It is the preseason. So a lot of this stuff may not carry into the regular season. But if this is the Broncos we are going to see this year, the shouldn't be considered the AFC favorites.
Bayless' tweet shows that he is complete moron, but the theme of the tweet us a point.