Yep. That's my argument. Glenn had for the most part a bunch of nobodies playing next to him at G, when they left Indy, they sucked. Glenn paved the way for thousands of rushing yards, prevented tons of hits on a statue of a qb, and had a false start every game. He excelled up to if not past, the level of several HOF caliber OT in his era.
AC has been widely considered top half of league, and fringe top 10 status his whole career. There has always been a guy or two you'd not blink trading him for. But, he's been solid and consistent as all get out.... Guys great. No shame