I just don’t like the part that players can come on and off while play is still going on. I remember watching Fast5 and it was driving me nuts. A shooter would be in the play, then the ball would go down the other end, come back, and all of a sudden she’s not there any more. She’s been replaced by another shooter when you weren’t looking. I just don’t like that.
I think just make whatever changes you want, but you have to wait for a stoppage in play, like a goal. At the recent internationals, they were making changes between goals and it was working great. All except the part that the players had to pretend they were injured. Just simply get rid of that. In fact, get rid of the rule that it’s the player having to sub themselves off. The coach should be able to come to the sideline, just get the umpire’s attention, and make the change themselves.