Cooper had a good year, definitely was the right call letting Biadsz sign with Washington.
However, other than Smith and Beebe, I have mixed feelings about the oline. Hoffman may be an option somewhere along the line, but the tackle spots are a bit iffy. Guyton has the measurables but had ups and downs which is to be expected. Steele was shaky most of the season, but played better last 4-5 games. I don't know that I would draft oline in the first round, unless they're far beyond the best player available, but day 2 they should definitely be looking to add. Securing a veteran at tackle for insurance may also be wise.