right joker...the way it is normally done, if this will be a series...that a team that refs an event gets a max score for the event.....
example:
game one
team A plays, team B refs, team C plays...
outcome A gets 75 points, B gets 100 points, C gets 25 points
game two
team A refs, team B plays, team C plays...
ouotcome A gets 100 points, B gets 60 point, C gets 40 points
game three
team A plays, team B plays, team C refs...
outcome A gets 80 points, B gets 20 points, C gets 100 points
series outcome....A totals 255, B totals 180, C totals 165
everyone plays everyone refs...this could be done by match or event...
the point system incourages teams to want to ref and play the entire series....
if this is not a series, but just independent matches then round robin the teams into the reffing position....
this way you don't have to pay for refs.