Currently at US we have shift realignment every 4 months where you can select your shift and days off based on your senority which I feel is the best way to do it.
How does AA do rotating in a particular department? Do you need 100% agreement among the members that they want a rotating bid area before going to rotating? I would hope so as I sure wouldn't want it.
On CS (shift swaps) I would much rather see it in our contract and not up to a supervisor. If fill out your CS through workbrain there is no paper work involved, no supervisor approval needed, as long as you submit it between the 14 day to 5 day advance notice. If it less than 5 days then you do need the supervisor to put it in for you. I would like to the the 14 day limit be increased to 21 days. You can do single double double or double double single, or double single double, if you are after a 3 day work week, very flexible.