ENGLEWOOD -- There is one noticeable difference between the offense Case Keenum is running for Bill Musgrave, and the one Trevor Siemian ran for Mike McCoy last year.

Keenum is getting the ball out of his hand.

“I always thought that it was my job to get the ball out of my hands, get it into the fast guys’ hands and let them do something with it,’’ Keenum said.

What you hear now about last year’s offense is every play was like a science project. Complicated equations for play calls. Some of the interceptions thrown by Trevor Siemian and Brock Osweiler occurred in part because a receiver ran the wrong route. Can’t always run the correct route if you’re confused on which pattern to run.

Running backs stayed in to block. During the minicamp here Tuesday and throughout the offseason, the backs have been swinging out to catch the ball.

It’s simple – providing you have the quarterback who knows where to throw the ball before the snap.

“I want to master this offense,’’ Keenum said. “I want to get on the same page as Matt [Paradis, the center], as D.T. [Demaryius Thomas], Emmanuel [Sanders] and all those guys on the outside so that we don’t have to communicate as much on the field. We’re communicating so much during the offseason and off the field that it just comes naturally.”

One more benefit to quicker passes: The offensive line doesn’t have to block as long.