I found the only way to do this is when you're fighting a group that you may struggle against is to do one of the following 2 things: 1-remove everyone from the whitelist just for that fight. 2-wait until there is about 1:30 to 1 minute left before it starts to set your fields (you can set your teams up but just leave them all in the weakest fields). Both work as I've used both strats when I thought spying was going on. I'm going to have to do it this saturday because we had a server merger and the team we should be beating has, for two weeks in a row, placed their people perfectly to avoid our heaviest hitters. It might just be dumb luck, but what I've learned in life is to assume the worst and plan for it.