Just saw that too. Not sure how this works out. Think we'll probably just draft the best OL available and then line up the best five when the season starts. If the best is a LG, Alex is RT, and if the best is RT, Alex is LG.
Harbs also said Taliaferro and Boyle are options at fullback. I don't mean to brag but I have said in the past that Taliaferro could find a roster spot because of his capability as a fullback. He's a decent receiving back, and he's hefty. He can pass block, too. To me, he matches the description of a new age fullback. Not sure if he'll be a great blocker at fullback but he's got the size and strength to do it imo.
Boyle has gotten fullback snaps but I think he may be too slow and too tall to be a modern fullback. Good option though, and he fills multiple roles. Makes a lot of sense to use him as a fullback. Versatility could be what wins him the job.