A great deal of high level offensive line play comes from communication before and during the play by the five guys on the offensive line. A lack of playing time together and familiarity with the guy(s) starting next to you, can really hinder the performance of the offensive line as a group.
Over the course of the last four regular seasons the Denver Broncos have used 25 different starting offensive lines - nine of which occurred in 2021.
The Broncos had many injuries on the OL in 2021. They used 9 different starting combinations in 17 games after using only 4 or 5 in the previous three seasons.