A baseball star goes through three stages in his career when he reaches the pros. First, he beats out the previous star, then he becomes the star, then he fights against another promising star. It's a vicious cycle, but it's life.
Spring training is unkind to the older stars, who are often on their toes, hoping that they won't lose playing time just yet to the next big thing. Eventually either they realize that their time is up or they fight harder to delay the inevitable.
With that said, I give you five former stars now fighting for their jobs.