I'm obviously not in the film sessions with our linemen,

but there were some missed assignments. That's to be expected though when guys are changing positions and splitting reps. It's just unreasonable to expect someone to master a position when they're splitting on field practice time with other players and switching positions during camp, and the performance yesterday bore that out.
They kinda had to be that disorganized. Hopefully you're right about a more stable rotation this week. WRT to practice time, there's a big difference between learning something in film study and translating that to the field with your teammates. Practice is the only way to "master" the position, and there's only so much practice time to go around.