Just like Watergate, he was just unlucky to get caught!!!! What abou the team lip readers to catch the signs and plays on the way in? That's why you see them talking behind the playbook. This is nothing new.
This type of thing happens league-wide like the "supposed" piped-in crowd noise in Indy or how about those seats in the old Mile High that made all the racket. That's not cheating is it?