Allnet, as a matter of fact, I saw a trend on another forum where the poster said he got this info from ESPN, and he stated that if a team in the playoffs (not sure if it was wild card weekend or any playoff game) posts a shutout, in their next game they will lose by double digits. I don't know much about the details as far as how many years they went back, I'm assuming beings it was ESPN, they probably went back to the beginning of the NFL, or whether it pertained to every round of the playoffs and just wildcard weekend.
The play would be on Oakland as the Jets handed Indy a shutout last weekend, so the system play would be on the Raiders. I think I remember it has happened only five times in the NFL playoffs and every time that team has lost by more than ten points in the following game. Hope this helps and that it can line your pockets with cash. Good Luck