The Bears' offensive line was viewed as one of the team's biggest strengths at the start of the 2019 season. By the time the year came to an end, it was considered one of the club's biggest weaknesses.
The most concerning issue with the offensive line's regression was that it wasn't isolated to a single player. All five starters played a part in the disappointing performance.
The biggest letdown came at right guard. Kyle Long, even when healthy, was a far cry from the player who at one time was considered one of the most talented offensive linemen in the league. His body failed him again, leading to another injury-shortened year that continued a streak of four straight seasons of nine games or less. Long decided to retire this offseason, leaving the Bears with a big void that GM Ryan Pace has to fill this offseason.
Long was replaced by Rashaad Coward, and while Coward's play wasn't terrible, he isn't the long-term answer the Bears need in the starting lineup.
Chicago didn't fare much better at offensive tackle, where Bobby Massie and Charles Leno, Jr. each had a season to forget. Massie earned the lowest Pro Football Focus grade of his career (63.2), while Leno, Jr. earned his second-worst (58.6). The offense didn't stand a chance as a result. It's unlikely either player will be replaced in 2020, but more depth (at the very least) is needed.
And let's not forget the drama at center and right guard, where Cody Whitehair and James Daniels were forced to switch positions midseason because of Daniels' struggles at the pivot. Both players fared well once the swap was made. Whitehair finished the year with the Bears' eighth-highest grade on offense from PFF, while Daniels' 70.3 was third-best.
NFL offenses simply don't stand a chance without a functional and consistent offensive line. The 2019 Bears are proof of that. But don't expect sweeping changes (sans right guard) to be made this offseason. Leno, Jr., Massie, Whitehair and Daniels will begin 2020 as starters, and there's a good chance Coward will too. There might be a chance to add a starting-quality player in the second round of the 2020 NFL draft, and the Bears should take advantage of that opportunity if it presents itself. But with salary-cap issues and limited draft capital, Chicago may have little choice but to give this unit another season to prove they are, in fact, one of the better starting-fives in the NFC.