Fail again, dude. Ryan Clady was a great pass protector as a rookie and his 2nd year with Cutler and Orton in the backfield.
When Tebow was starting, he held the ball too long and the Broncos sack numbers skyrocketed.
When Manning come to town, he plays at a pro-bowl level again. So a good QB who gets rid of the ball quickly help[s his o-line. It's a symbiotic relationship.
Try watching football instead of relying on stats and articles by idiots for your insight.