I can only imagine how much this sucks for all you fans of the Saints. I would react the same as many of you. Goodell is probably more ticked off about being stonewalled and lied to than player safety in my opinion. I do not think there is anything the Saints can do because coach contracts when signed state that you have to abide by the Commissioners rulings, end of story. Appeal would probably be no good either.
I doubt there is anyway to soften the blow, but at least the Saints have a great coaching staff and eventually Brees who just got more leverage in negotiations. He could probably call the plays himself by now. I still expect the Saints to be a contender and have organized themselves before the start of the season. At least your GM will still get to run the draft as well.
Good Luck to all of you, never like to see fans be punished for team mistakes.