Quote: Bill Sonny "and when you shut Roby down, Saints don't function, hence why we battered them'"
The MOS is awarded (or supposed to be awarded) to the player who has made the most influence. Roby therefore makes the most influence in most areas. If Tomkins plays poorly the team is still able to perform to almost the same level. As you are saying 'shut Roby down and you shut the team down. Wereas shut Sam down and the team can still play.