"Thou shalt have no other gods before me."
There should only be one official Leprechaun mascot. If there are to be other Leprechaun mascots, there should definitely be a pecking order, and only the best one should be the official one to represent the big events (football games, pep rallies).
The others can serve in lesser functions, but when it comes down to who the official representative mascot for the big stuff...
"There can be only one."