that would be the correct assessment
By continually starting crappy players, you will have a continually crappy OL
maybe not as crappy as if you rotated different crappy players, but still crappy.
just review the Bills OL situation for the last 15 years.
On the other hand, if you had a program in place where you consistently drafted OL players and melded them into your OL mix, you would retain continuity but at a very high level of production.