kobedoggie, NoOne and Padreman demonstrate what I said about "Teams [and OOTP players] may differ a bit in roster management procedures."
Those five or so utility guys that I talked about could have specialized roles such as what NoOne brings up. Here's an extreme example from real life:
Herb Washington. This guy really wasn't a baseball player, but he was a world-class sprinter. Back in the 70's, Oakland A's owner Charlie Finley hired Washington for two years as the team's "designated runner." He appeared in 105 games and stole 31 bases in his short career, but he never came to the plate to bat. Never! That's his career record below; exactly 0 PA.
Padreman shows 11 pitchers on his staff, and that is also common these days, but only one C. Uh-oh. Better have another decent C down in AAA, guy!
