I haven't been WH for very long, but my approach is to ask the coach during our initial meeting with him prior to coin toss, coach, if you win the toss what is your captain going to tell me? and which end do you want to defend? Then if the captains don't say what coach told me prior, then we say are you sure? This last Friday night prelim game, when Red won toss elected to defer, White took ball, asked Red, which end will you defend, captains, looked at each other and said,
" I don't know Jeff what do you think, which way do you want to go" I stepped in and suggested that I thought their coach wanted to defend the scoreboard, they said okay, "we'll defend the scoreboard."
It seems to work for us anyway.