Kids’ leisure activity.
Person A works 5 sessions a week, fixed.
Person B works 1-2 sessions a week depending on their availability and the employer’s need.
Person B thinks all overtime opportunities should be divided equally, including quite large extras like trips and residentials which pay well.
Contracts not clear on the matter - it just says overtime will be offered from time to time.
Those in charge of staffing would rather have Person A for extras as they are much better at the job, much more of a team player, get on very well with everyone, great relationship with parents, kids respect her etc. Person B is less in all respects.
What’s fair? Any suggestions?