I read that Ortiz quote on boston.com too, and I feel just horrible for him. It's heart-breaking.
That said, I don't think Tito will ever 'move him down' in the lineup, and just being benched won't help his confidence, so agree that sending Ortiz to Pawtucket is the best idea. Hopefully if he's not in the glare/pressure of the majors spotlight, he'll find his way again. If not...well, that can be decided later, if it comes.