Coach's challenges. There's absolutely no reason why we shouldn't have those already, even in a one-a-game type status. If you're going to openly admit to the league when referees have made a mistake, then you ought to give coaches a chance to remedy that problem.
no that's effing lame, replay is lame enough as it is.
put 1 or 2 refs on the floor. everyone wants to try and be creative and trying to "fix" the game instead of actually addressing that actual issue. and that is the fact that there's replay & 3-4 officials on the floor and they still get it wrong.
the problem here is each official interprets the rules differently. so, you're asking 3-4 officials to on the floor to call the game correctly when they are all seeing something differently.
add to that factor that even if a questionable call occurs right in front of an official, on any given play it might not be that official's responsibility to make that call - yes that's right. just because one official has a better view of a particular play...doesn't mean he gets to make the call.
less refs on the floor will help this game a lot, but there's also shady crap going on too.