re: Sign stealing...help me better understand

This doesn't seem that hard to me. Figuring out signs by trial and error, luck or some other means is part of the game. Having a home field tech setup to do that, which other teams don't have and which the visiting team obviously can't have - is a totally different story. If you're sloppy with signs and they get figured out, well, that's something that can be anticipated. Having a videographer working with players/staff on a live feed to decipher signs is obviously quite different.