OK, I understand that sending someone to 'spy' on an opponent isn't the most ethical way of preparing. However, if FB coaches would change their signals, wouldn't all of this be a moot point? Seems like most QBs wear a wristband, right? Couldn't the wristband be changed every game (hell, every quarter for that matter) so that the same dozen or so signs/signals would mean different things? I mean, if you think your signs are being stolen, wouldn't it be pretty easy to vary them without throwing the whole communication into disarray?