Denver Broncos cut 13 players, including trading tackle Chris Clark

Chris Clark was a casualty of the Broncos' youth movement along the offensive line, as he was dealt to the Texans. David Zalubowski/AP

Most significant move: There has been a feeling around the Denver Broncos throughout the offseason and into training camp that, if a roster decision was close, the team would lean to youth. And with the trade of tackle Chris Clark to the Houston Texans, the Broncos certainly stuck with their youth movement in the offensive line. Clark, who started 27 regular-season games in four seasons with the Broncos, 17 coming during the 2013 regular season and postseason, had opened training camp as the starting right tackle. But Ryan Harris quickly took that job and now the Broncos have decided Michael Schofield, a third-round draft pick in 2014, will be the team’s swing tackle in Clark’s place. The Broncos will start rookie Ty Sambrailo at left tackle with Matt Paradis (a ’14 draft pick) at center with Schofield as the primary backup.

Air it out: When the Broncos selected quarterback Trevor Siemian in the seventh round of this year’s draft, Siemian was still recovering from surgery to repair his ACL. He had essentially thrown for the Broncos in a pre-draft workout on one good leg. But the Broncos saw a live arm to go with a quick release, and that assessment was right on. Siemian showed what coach Gary Kubiak repeatedly called “an NFL arm" in training camp and as a result moved into the No. 3 quarterback spot, ahead of Zac Dysert (a 2013 draft pick). Siemian led the Broncos to a win in Houston in the preseason with a game-winning drive in the closing minutes. The only question now is whether the Broncos keep three quarterbacks on the 53-man roster -- they kept two last season, three in 2013 -- or risk exposing Siemian to waivers with the intention of putting him on the practice squad. Siemian’s arm strength is hard to miss, though, and with most teams in the league always on the hunt for quarterback prospects, it could be difficult to get Siemian through the waiver process.

What’s next: The Broncos still have some migraine-inducing decisions to make at some crowded positions. At running back they still have five running backs on the roster they like and things have been so competitive that Montee Ball, who opened the 2014 season at the No. 1 back and was the No. 2 coming into this camp, was the fourth back into the game this past Saturday. The Broncos also have deep group of linebackers and could very well send multiple players into the open market who will quickly end up on somebody else’s roster, possibly even an upcoming opponent or two. Executive vice president of football operations/general manager John Elway said “it’s tough because you like those players, but it also means you’re getting better, deeper as a football team."

Broncos’ moves: CB Tevrin Brandon, T Chris Clark (traded to Houston Texans), G Andre Davis, TE/FB Joe Don Duncan, QB Zac Dysert, TE Jeff Heuerman (moved to injured reserve), P Spencer Lanning, TE Dan Light, S Ross Madison, LB Danny Mason, TE Jake Murphy, WR Nathan Palmer, RB Jeremy Stewart, LB Chase Vaughn, LB Reggie Walker.