ENGLEWOOD, Colo. — When organized team activities began on May 13, Head Coach Vic Fangio said the practices marked the start of the season.

"We've installed a lot of our offense, defense and special teams, but having to go on air or walkthroughs," Fangio said on May 13. "Now we get a chance to go against each other and that's just another step in the progression."

Through four of those practices, Fangio said he's pleased with the progress his team is making — and he said the success can be attributed to two different factors.

"I think the guys are picking things up quickly," Fangio said Monday. "That's a compliment to the assistant coaches with the job they're doing with these guys, which they did in Phase I and Phase II in the classroom. And it's a compliment to the players that they've been able to transition to on-field 11-on-11 football and do what they've been taught. That's a big transition from classroom to the field."

Courtland Sutton, Noah Fant, Isaac Yiadom and Ron Leary are just a few of the players making that transition:

As a rookie, Sutton hauled in four touchdown receptions. But just two of those scores came in the opponent's red zone, and neither came when the Broncos possessed the ball inside the other team's 5-yard line. The Broncos' strong running game in 2018 can help explain part of Sutton's lack of red-zone scores, but the wide receiver said Monday he's focused on upping the tally in his second season.