House and Yes Man are pretty much mutually exclusive though. Yes Man is about as useful as a lawn ornament as long as House is alive. And if Yes Man is in charge, House is effectively a corpse.
If there were four Couriers and each helps a faction, it's impossible to say who would win. Yes Man and House cannot both be in power, and there is also only one Securitron army. And any action taken by one of the couriers would be cancelled out by one of the other couriers.
