Dallas Cowboys head coach Jason Garrett speaks during a news conference following an NFL football game against the Los Angeles Rams in Arlington, Texas, Sunday, Dec. 15, 2019. (AP Photo/Ron Jenkins)FRISCO, TX – With the future of coach Jason Garrett in limbo, the Dallas Cowboys have other reasons to believe there will be plenty of change in 2020 — 23 of them, to be exact. There was no word by late afternoon Monday from owner Jerry Jones on whether Garrett would return for a 10th full season. “In reflection, I'm very fortunate to have spent the time that I did with coach Garrett,” seven-year center Travis Frederick said Monday in a locker room dotted with large plastic bags holding players' belongings. Quinn led the team with 11 1/2 sacks in his first Dallas season following a trade with Miami.

Travis Frederick didn't fully understand the business of football when the Dallas Cowboys drafted their center six years ago and made him an instant starter. Two years ago, New England left tackle Nate Solder was perhaps the most-coveted left tackle in free agency, and the Patriots let him go at age 29 and two years removed from a torn biceps. Oakland coach Jon Gruden has stressed building the offensive line ever since returning to the Raiders before last season. "We thought it was really important as we continue to develop this offensive line." While left tackle has long been the highest-paid position because of protecting a QB's blind side, the value of guards has gone up in recent years.