Bomar,
There are 2 that spring to mind:
1. Harry Sjeka, who the current coach played at fullback for a few games, when I don't think he'd played there before and should have been in the halves or not in the team at all.
2. Matty Moylan is another that he now plays at fullback, although he does play well there so I don't have as big issue with that selection.
There are a number of others that he seems to chop and change, such as playing Damien Cook who has played 6, 7 and 9 at various stages, even though Cookie does play with 110% enthusiasm in whatever position he plays. He also seems to play favourites with a few players, and seems to dislike others within the squad and gives them minimal game time even though they would be better options than others in the teams he selects.
It's just my opinion, but I think we will be better served with Alex Melville as coach next year, as he seems to have a natural ability to bring out the best in his players.