I would definitely think Barclay is the backup on the right side. If Bakhtiari goes down, then swing Bulaga from the right and install Barclay. Tretter seemingly is the backup on the inside. Worst case scenario, if both tackles are out, Tretter on the left and Barclay on the right. And pray for a good day running from Lacy, because Rodgers is not going to have much time...