I should clarify. Whitehair is an NFL caliber OL and he looks the part. Anyone that follows the team knows that. The rest have talent and athleticism, but they don't look the part. More weight room less mess hall kinda thing. Purely an observation. Maybe comparing them to Cody is unfair. With that said, run blocking struggled mightily last year. Bulk doesn't necessarily = power.
Everything else: A+ source.
Also on the QBs, Don't be surprised to see Delton redshirt. If they feel comfortable enough with Ertz, they likely won't burn a year of eligibility with him.