Offline
My argument is that the Broncos did had some "big names" or my preference would be "proven personnel", at the very least I would wager much better personnel than we currently have (of course, I'm hoping to be proven wrong one day).....both personnel and system matter, both have to be good/great.....
I think the scheme can mask some issues in talent, although athleticism is required, but to be better than average to above average, you have to have talented guys. While guys with lesser talent can be made to do a good enough job, it can be even better if you do have talented guys. Especially at Tackle. As noted a few times, no matter how good the scheme is, 3rd and 13 happens and you have to have guys that can handle great edge rushers on those downs if you want to be more than average to above average. Hopefully Fuaga is one of those guys.
It's just that most of the league is in the average range on the OL due to the lack of properly trained OL coming out of college. Which, I think, has a lot to do with all the RPO, Read Option, and spread systems being run in college.