I got to thinking about this since I have had a couple of spirited discussions with a friend of mine on another site. Today it seems to be the definition has changed some. I am beginning to believe there is no such thing as a pure utility player anymore. The Dodgers were lucky for the last several years to have what many called super subs. And they had two at the same time, Kike and Chris Taylor.
To me, the definition of a utility player was a player who did not have a definitive starting position and was used to give the starters a break when they might be nursing an injury or just in need of a day off.