I think there's a lot of validity to what you're suggesting, but I'm not as sure that Halapio is automatically going to be in the category that some suggest--which is definitely that he's somehow already behind the others.
He learned 3 different systems, was a 4 year starter, a 2 time captain, and had many good strengths.
I'm not expecting him to be the best of the bunch, but it's probably way too early to pencil him in as the worst just the same.
I see 9 OL, with 4 tackles (Solder, Vollmer, Cannon, Fleming) and 5 interiors (Mankins, ONE of Connelly/Wendell, Kline, Halapio, and Stork).
I personally don't equate a relationship to getting rid of ONE of Connelly/Wendell and somehow meaning that to be that we're stuck with a bunch of rookies.