although I get your point and see why you would say that.
For me it's more this: Average QB talent, shown talent, across all the teams and including a few years.. (no specific amount of years but I wouldn't really use 60's era football vs today).
And I mean QB's who are starters.
And in doing so there ARE, always, going to be QB's whom "you" would 'rank' as 2nd tier... in a way I wouldn't disagree, but for me there is never a year when that's not the case... and thus, they ARE starting caliber because there simply aren't enough top tier QB's to go around. I think that would hold true for every position.
Maybe semantics here.... somewhat, but I think, personal opinion, that it holds true that there are not 32 QB's better than Foles... even using 'caliber', whatever that might entail, as criteria. I can certainly name off 32 QB's in NFL history... one heck of a lot more than that would be my guess. But they ain't available today. - JamesJM