I've had Guillen on my fantasy team all year, and have been trying to trade him all year - unfortunately the right deal never came along. The reason the M's decided to let Guillen go had nothing to do with his play on the field - its just that he's a walking calamity. If its not his knees, its that he played for 2 months with mono (and just thought he was really bored). The guy should have a permanent DL next to his name. I don't foresee this getting better, and I see it ending after a month of on-again off-again crap with him on the DL. That's mere speculation, but if we let history be our guide, this will not end well for Guillen owners.
But, that's just like my opinion, man.
The Dude Abides