chess club, baseball team practice, science demos for parents

in my quick picks it's felt like there's a lot slimmer pickings but maybe it's because we're still avoiding a lot of 30 year olds. i know i'd have picked more older dudes but i don't think i need the minutes.

when we do do those 13-15th guys are they just held in reserve and not part of our active rosters for points purposes? and we use add drop if we want to call someone up?

any rules about how that works?