You can't run the slant against that 4 across zone... you can run it against their base - maybe on first down. Establishing the run would go a long way toward setting up the slant, but MM has to go about the right way.

If MM comes out and simply tries to run it on 1st down to establish the run; and secondarily, predictably runs on 2nd down after a 1st down incompletion - then I think that plays right into Seattles hands, and it will be long and frustrating day for the offense, and will substantially reduce our chances of winning the game.