Shuffled or shafted?

Wow, you could have blown me away when I read Rob Norris was shuffled out of Cabinet. 

There was a lot of time, energy and money spent on getting Norris re-elected last November.  A lot of big hitters worked his campaign and I imagine they are not overly happy about his loss of a cabinet position. 

Or perhaps it was more about keeping Prebble out of the legislature than getting Norris in.

Premier Wall said the changes were not based on merit or performance.  But if good performance does not merit maintaining a position, what does?