Their ability to perform under pressure while lacking the proper tools and support.
Shift managers only make $0.60 more than crew with far more responsibilities. No profit sharing/bonus for shift managers.
The capability trap: stop blaming crew for poor performance when in actuality it is the lack of tools, proper training and labour scale back!
Proper and clear training plans. Ex. Day 1 Front/POS pairing them with a specific person assisting them with their first few orders. Not "figure it out". Communicate with a laminated checklist all the duties of that position; show them how to complete those duties. When diligent train next position.