After each play, does the snapper have to go get the ball? Will ball boys help him retrieve the ball? Will there be a lot of situations where, as we aren't supposed to touch the ball, will be asking players to pick the ball up and give it to someone on their team? Might have to stop the clock a lot when nobody gets the ball and we're ready to hike the ball.
Can the snapper hold the ball until everyone is set, then place the ball down and hike it in 1 second? Will this cause confusion with the defense? When is the 'ready for play' since the whistle for ready for play has been changed last year?
Does the umpire have to go back to the original line of scrimmage to pick his bean bag up after the play is over? What if it's a 20 yard play? Will it take some time for these unathletic umpires to go get it 20 yards away, come back to the new spot of the ball and place a beanbag down again?
How do referees signal end of the half? Are we doing a measurement by bringing the chains out to a bean bag or foot of a linesman?
It will be interesting.