My opinion is bring him back into the rotation this year and give him next year as he has a $10m option and we're stuck between a rock and a hard place on that (keep him and pay $10m for a reliever, which a has surplus value potential I GUESS if we're being optimistic on him, or see him get a starting gig somewhere else) but after next year, put him in the pen. Hopefully we'll have more starting depth then with Norris, Sanchez, Nolin and others potentially being able to contribute, and I feel like Morrow would be one of the best relievers in the game. But I do want to give him one more shot at starting.
But yeah, Morrow in the bullpen could be sheer madness.