Its pretty hard to say but one certain club umpire might favour one player from that club and do it all year so that he has a chance of winning the league. Don't no really that was just my guess anyone else wanna comment
Thats exactly my point.......most clubs have one umpire all season and generally they know who they give votes too!
I am not saying there is any malpractice, but it is pretty easy for an umpire to keep tabs on who he gives votes to all season, when he umpires every game.
Plus generally only one or maybe two players from each club has any chance of winning it......so they will more than likely dominate voting whether they deserve to or not on some occasions.