To my knowledge the temporary absence of the CEO is absorbable in the short term because the CEO is primarily concerned with things like strategy & the future, not the immediate day-to-day operations.
You can keep ticking for a long time without direction or strategy. All the parts will seem to be moving. But you won't be getting anywhere.
You can keep ticking for a long time without direction or strategy. All the parts will seem to be moving. But you won't be getting anywhere.