Kubiak admits the obvious: 2015 Broncos offense “did not play well at all”

After the retirement of Peyton Manning and the departure via free agency of Brock Osweiler, the Broncos official website referred to the quality of the team’s quarterback play in 2015 as “sub-optimal” and “near-replacement-level.” On Friday, coach Gary Kubiak didn’t use such specificity in connection with the quarterback position. But he used a broad brush…