Whenever he is asked to look into the future, Peyton Manning usually will let the opportunity pass. The Broncos quarterback typically will flash his trademark shrug and say, "I can't predict tomorrow," though he is one of the NFL's best at predicting what the defense will do.

But that doesn't mean others can't see or can't point to what Denver's offense can become in year No. 2 with Manning.

"You know he's going to come back strong and be ready to go," said tight end Joel Dreessen. "He is so intense, so focused. It carries over to everybody. I think everybody knows what we did this year and I think everybody wants to get better."

The Broncos already have had significant change on the offensive side of the ball. Coordinator Mike McCoy left to be the San Diego Chargers' head coach, 34-year-old Adam Gase was promoted to coordinator and longtime NFL coordinator Greg Knapp was hired to replace Gase as Denver's quarterbacks coach.

It's the first time in Manning's pro career as a starting QB that he has had a change in his team's play caller. Tom Moore called the plays for the Indianapolis Colts in every season Manning was their starter.

Even with all of the success Manning has had, Gase expects the four-time league MVP to work hard during the offseason while armed with big plans for the Broncos' 2013 campaign.