Peyton Manning's late-season struggles last year were well documented. Dealing with torn quads, the Denver Broncos quarterback put up just five touchdowns compared to six interceptions in his final five starts of the 2014 campaign. That came on the heels of him starting the season with 34 touchdowns and nine picks in his first 11 outings. 

Getting accustomed to a new offense under first-year head coach Gary Kubiak, Manning struggled through limited preseason action. In his most extensive action of the summer, Manning completed 14-of-21 passes for 124 yards with zero scores and an interception against the San Francisco 49ers. He was also sacked three times on 24 drop backs. 

On tape, it's easy to tell that Manning's talents have diminished. Even on intermediate routes, Manning's passes do not have the same zip on them. It could be a combination of the multiple neck surgeries Manning has gone through and the 9,049 passes he's attempted in his 17-year career, but Manning simply isn't the same quarterback he was even during the first half of the 2014 season. 

An unnamed AFC executive touched on this subject earlier this week (via NFL.com): 

"You're aware the zip and velocity isn't there, but he's a very, very cerebral quarterback."

This shouldn't lead people to believe the Broncos will take a major step back. Kubiak's offense takes into account Manning's limitations much more than the previous regime under coordinator Adam Gase. As a run-first offense with a ton of talent at running back, the Broncos will be fine. It also must be noted that Manning still has Demaryius Thomas and Emmanuel Sanders to throw the ball to. A more ball-controlled offense with a stingy defense could have Denver earning its fifth consecutive division title. 

Fantasy-wise, Manning becomes an over-valued DFS play, especially considering the Broncos scheme is going to trend to running the ball.