Recently there have been (regrettably) some demotions of flight crew from Captain to Co-pilot for 'poor performance'.....some temporary, some permanent. This is unfortunate and upsetting for all concerned yet is shows that flight ops have a 'bottom line' standard which they are not prepared to compromise.
Perhaps poor performing CSDs and pursers, ie those that can't manage the securing of the cabin in a timely manner, should also be demoted for 'poor performance' because they are unable to cope with the new challenge of reduced crew compliments or is the ability to adapt not a leadership requirement amongst cabin crew CSDs and pursers?