USA TODAY Sports’ Lindsay H. Jones looks at how the big offseason changes in the AFC West will affect the division’s 2017 NFL season.

Training camps are still in the distance, but USA TODAY Sports is providing five things you need to know about every team in the NFL to catch you up on the offseason. Today, the Denver Broncos …

1. The QB competition is about to ramp up

All eyes are on the quarterback battle between incumbent starter Trevor Siemian and 2016 first-round pick Paxton Lynch. Siemian, who threw for 3,401 yards and 18 touchdowns (with 10 interceptions) in 14 games last season, piloted a passing offense that tied for 21st in the NFL last year. The 6-7, 244-pound Lynch filled in for Siemian twice as a starter last year, but his rookie campaign otherwise amounted to a redshirt year. New coach Vance Joseph has said the quarterback competition won’t begin in earnest until training camp.

2. The line received reinforcements, but concerns linger

After repeated struggles up front in 2016, the Broncos loaded up on the offensive line this offseason. Denver signed former Dallas Cowboys guard Ronald Leary and former Oakland Raiders right tackle Menelik Watson, in addition to drafting Utah offensive tackle Garett Bolles in the first round. With Russell Okung’s departure to the Los Angeles Chargers leaving a vacancy at left tackle, Bolles or Donald Stephenson will have to step up for the starting role after the unit gave up 40 sacks last season.


3. An old rival has joined the backfield

Former Kansas City Chiefs running back Jamaal Charles signed with Denver after back-to-back injury-marred seasons. He had surgery on a torn anterior cruciate ligament in 2015 and has struggled to recover, appearing in…