NFL Umpire position change

[bisonlj]

There will probably be signicant changes in responsibilities with this move that didn't happen when they experimented with it a couple years ago. You may essentially have 2 referees (based on responsibilities) on either side of the offensive back field. For example, the R may take the RG, RT and QB initially while the U will take C, LG, LT, and QB if he rolls to his side. If that happens, the R would then pick up back-side blocking and action while the U would do what the R would normally do on a QB run to that side. Same for other running plays. There will definitely be re-training of keys and responsibilities, especially for the R and U and to some extent the other 5 guys as well. Things they do naturally today will change. It should be interesting. I wonder if and when it will trickle down to lower levels or if they keep it after this 3-year period.