To add to Daves post. I'm sure K9 or someone will blow this up but this has them at number 6 last year. You don't have the number 6 offense with a lousy HC.
https://www.lineups.com/nfl-team-rankings
This also shows that we were terrible on 3rd downs & TO's.
I found one on ESPN that has us at #6 offense.
https://www.espn.com/nfl/stats/team
Another. Only PFF has us at 13.
https://www.footballdb.com/stats/teamstat.html
https://www.nfl.com/stats/team-stats/offense/passing/2020/reg/all
Yeah but 6th based on yards, including rushing yards. The PFF article is really about the passing offense. It does say the rushing offense has generally been good, it's passing that it is criticizing.