Hey guys, been awhile since I've been around, happy almost-2017-season to you!
Should you just line up and beat the other team with sound execution?
I'm curious, how is "stealing" signals any different than using film to determine opponents' tendencies, or changing the play at the LOS based on a pre-snap read? In either case, you're using more than "sound execution" -- you're changing your approach based on information gleaned from your opponent. The way I see it, failing to protect your signals is no different than failing to properly disguise a blitz, and allowing the opposing QB to call the right audible.
That said, if you want to address the issue, what about using NFL-style wireless comms between the coaches and (certain) players?