Riggleman makes the lineup card, and Morse is rehabbing. No one is being held prisoner. I will agree that Taveras being in the starting lineup is embarrassing though.
I can understand Guzman. Riggleman just misuses him. Put him in a position to succeed and he will. Taveras will never succeed. If I was the manager, this is my lineup:
He would never do it because he is in love with stroking everyone's ego.