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:
Guzman RF
Desmond SS
Zim 3B
Dunn 1B
Hammer LF
Pudge C
Gonzalez 2B
Morgan CF
Olsen P
He would never do it because he is in love with stroking everyone's ego.
Why would you want Guzzy over Morgan at the top and Gonzalez over Kennedy?