The taping of calls and intercepting of coaches to quarterbacks were for future games. It's paying off now. That's why the Patriots are kicking butt this year. I'm not saying they have no talent, I am just saying the cheating from last year is for this year's games.
That's why they are 17 and 0. That is why Brady is always connecting. The players may have not known, because the Patriots coaches would train them for plays that would defeat their opponents plays.