There will be a pecking order within the holding pool so that ‘LIFO’
(CR reversal) occurs first.
After that those who come under the categories of deficiencies ‘proficiency/ competency’ (failed~resit) & active final warning letters will be bottom of the barrel to be rehired and were selected before the original LIFO list.
There will invariably be variations on a theme. What unfortunately is likely to happen is that a significant number will be doing a “Capt Oates”.