Constitutional Question

Oh, how I hate these little issues, but several people have been bugging me about a rule that isn't clarified in the Constitution; even I'm not 100% sure of the correct rule here.

We've had a long standing rule that you have to carry two players at each defensive position on your roster, and you can only start a player at each position who is carded for it. Thus, Jose Canseco can not start at 2nd base, even though he played there in high school, because it's not on his card. The only exception is that a corner outfielder can play either LF or RF. The issue is Centerfield. I was under the impression that you could only start a player in CF if he has a card at that position. A couple of people have mentioned that Shannon is starting Barry Bonds in CF, even though he is only carded for LF and asked for clarification Does anyone else have any insight into whether this is following established rules? If not, we should add an addendum to the Constitution regarding this, one way or the other.

My vote is that if we've been allowing uncarded players to start in CF without an argument, then we should continue through the next season. However, starting next season, only players with CF on their card should be allowed to start in this position.

What say you all?