Model has invited me to the thread, so I'll jump in with some observations.
He is doing a really good defensive game. I did not manage to pocket any units in the south, and that is costing me now in terms of speed and depth of the advance. I think its clear this game wont be over by Christmas, despite the fact that Im just 8 hexes from Moscow and it is still September.
So, the German forces are preparing for the long game.
The era of procrastination, of half-measures, of soothing and baffling expedients, of delays, is coming to a close.
In its place we are entering a period of consequences..