What we need are consistency and courage.
If a foul is a foul in one match, then it is in another.
If a foul is a foul on the halfway line, it's one in the penalty area.
If it's a foul in the 49th minute, it's one in the first.
Referees need to have the guts to give a penalty in the last minute against Liverpool at Anfield, Rags at OT, or even City at the Etihad, if a penalty is the correct decision.
I also happen to think we need an orange card - for offences that are not quite red, or where a second yellow is unduly harsh, and maybe we should consider sin bins for 15 minutes too.
I would love to see refs miked up, as in Rugby, but I would be amazed if that ever happens.
Finally, we need a timekeeper, with time wasted added on. Even if a match then lasts 120 minutes.