Why, so we can get less return? Morales has just one year left on his deal. The only side who benefits from that is Rogers because they get to pinch a few pennies, meanwhile you're taking less return on one of your best assets (Happ) so that someone else can pay Morales to sit on the bench, which we can just do ourselves. Only broke-ass teams make moves like what you just suggested. This team isn't ready to compete either way, so its not like shedding Morales or Tulo somehow makes us competitive next year.
Long story short: dumb idea.