The AI does move players from time to time. I've seen it move a run-down catcher to centerfield a while back

That was also the end of the New York Crusaders as a competitive entity.
I get the annoyance in the thread though; my longterm shortstop (only 31!) defensively is past his "best before" date and I had to move him to third base for the new season. Zero experience. It's gross. Worse, the third baseman had to move to short to accomodate the other guy's decomposing body, and can't cope either. The left side is a free-for-all. It's only the start of May and my hair is already all white. At least the parts that I didn't rip out by the fistful.