He's not getting any younger. He'll be 24 when this season ends. No matter how much you want to downplay it, it makes no sense to do this just as he's dominating as a starter. You can justify it all day and you can probably make a good enough case that it's "no big deal" or that it isn't that bad. But there is definitely no defending it as a good move. It's completely illogical and completely desperate. At best, they're delaying his development to fill a hole on a team that isn't going anywhere in an attempt to save their jobs. Or, better stated, the chances that this team is going anywhere, combined with the chances that this move is the quick fix they're going to hope it is, aren't nearly worth delaying his development.