How does an actor leaving a show once their one-year contract has expired translate to "blood bath?" I'm genuinely asking. It's not a rhetorical question. Your choice of words makes no sense.
But how is that a "blood bath?" That implies it's something bad or negative, or that it would be a hindrance to the production. We all know that's simply not true. It's just unnecessary hysterics and hyperbole on the part of the OP, which could probably be avoided.