They weren’t world beaters, but rewinding a decade the interior Oline had highly drafted talent in Wood (1st), Levitre (2nd), Rinehart (3rd), etc. Say what you want about previous GMs, but they spent draft capital on interior Olinemen, and that translated to more success in the run game. They also took some risks on top talent with checkered history; some of which - Incognito- paid off.
With regards to draft position and physical talent….
2016 Offensive Line
Cordy Glenn (2nd)
Richie Incognito (3rd)
Eric Wood (1st)
John Miller (3rd)
Cyrus Kouandijo (2nd)
That line had issues, but it could physically dominate defensive lines in the run game, especially on the left side or with Incognito pulling.