The troll strikes again but now is resorting to made up information.  The more desperate he gets to save some type of face the more mistakes he makes and the more he exposes himself for what he is.  I love it.

I suggested something similar back in November.

My suggestion centered around a defensive replacement coming in to play 2B, but then, moving your 2B to LF and putting the LF on the bench instead of your 2B.

This would be accomplished through the defensive hierarchy setting.
Listed 1st under 2B def replacements is the def specialist bench player. Listed 1st on the LF def replacement is your starting 2B. 

I think that setting would be an easier fix with less problems. You COULD list a C as the first choice to replace your SS if you wanted. Secondary positions would not come into play at all.

Simply the use of the hierarchy list and the "allow def replacement" box in player settings.

I also suggested something similar a while ago.  The idea was once it was decided which players would be in the game (using the current logic), the AI would make a pass through each defensive position, ordered from most to least specialized/important.  Something like C, SS, CF, 3b, 2b, RF, LF, 1b.

Step 1- of the 8 defensive players (excluding pitcher), put the highest catcher on the defensive depth chart at catcher (moving to catcher if he was playing a different position)
Step 2- of the 7 remaining players, have the highest SS on the defensive depth chart play SS (moving to SS if he was playing a different position).
Step 3- of the 6 remaining players, have the highest CF on the defensive depth chart play CF .....
etc.

The only loophole left to close would be what happens if there's no players on the defensive depth chart for that position when it's checked for a particular step.  Should that trigger an additional substitution off the bench, or should the AI just make due with whatever player is left over at the end going into that position?