He's going to move Prentice to Environment, replacing Rona. Fine, do it. But is Jim Prentice going to actually be allowed to form decent policy? No.
It's a mistake to blame Rona Ambrose for the policies of this government, though of course she is responsible as Minister. We all know that Prentice will be no more able to make a sensible green pitch than Ambrose was, and that's it.