Hope you don't mind an interested lowly PPL student sticking his nose in.
Imagine you are commanded by TCAS to perform a certain action to avoid a collision...but whilst executing the action the a/c is brought into conflict with another a/c (different to the first). Is the modern TCAS system designed to deal with multiple threats and combine available info on each to arrive at the most suitable instruction to give? What is the saturation point? Slightly pessimistic of me to think of this perhaps...!
Just intrigued
Regards,
V1R