Dotel does have an option ..but Tigers can 'buy it out' for something like $500k. He'll be 40 years old next year. I think Tigers will buy him out and let him go.
Valverde is FA next year. I think he's going to want more than Tigers are willing to offer. After all, he is something like 37 years old himself and has been very shaky in several games this year. I seriously believe he is gone ..by his own choice.
Delmon Young is a FA after this year ..and I highly doubt the Tigers will make him an offer. Thus, he is gone due to Tigers not making him an offer.
Laird is a FA after this year ..and other teams might be willing to offer more than the Tigers. That is why I think Laird is gone ..by his own choice.
I think Raburn has another 2 years before eligible for FA. Unless the Tigers can trade him with somebody else, ..I think he may be back. But again ..who would Tigers replace him with? What FA's would be available ..and what would it cost?