I'll start, only my opinion, YMMV.
1) Referees running to get QB forward progress spot on sacks, completely ignoring the QB laying under the defender. Stay back, observe and let the wings get forward progress.
2) Umpires sprinting to the pile on every tackle. Use your voice and come up cautiously, watching for DB fouls.
3) Back Judges dropping a bean bag on punts after a fair catch. This is a head scratcher.
4) Wings winding the clock when ball carrier is not tackled near the sideline. When I say near, probably OK to wind when tackle is within a yard of the sideline. So many wings wind when tackle is 2, 3 sometimes 4 yards from the sideline. Simply no need.
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