Injuries are inevitable in the NFL and can be devastating to a team at any position. Look at what happened to the Cleveland Browns in 2019 at safety. The Browns started with a ton of depth and ended up with Juston Burris and Sheldrick Redwine starting at the end of the season.
No would argue quarterback can be the position most impacted by injury, and after being sacked 40 times in 2019, it is amazing that Baker Mayfield wasn’t seriously injured. Mayfield was out for a few plays here and there with finger and hip issues, he but did not miss a start in 2019.