There are a lot of posts here which are constrained within 'the box'.
But think outside it. If a strike is called then the operation can be crewed at 1 crew member per 50 pax; forget FCOs, they could be instantly amended by an OMN. Forget any in-flight service, not a problem, we kept going during the GG strike. BA will keep going, but who can hold out longest? I know who my money is on