Walter Model: Ah, but it wouldn't do any good if you ended up leaving Army Group South empty, would it? 
I'm going to have to make a request: could one of the Soviet players join the German side as an AGC? Maybe one of the Soviet AGCs and have your Chief of Army take over the open Army Group - if Germany does the same, that will fill all of the Army Groups on both side. The ministries I'm not as concerned about - I can have the HoS handle it with advice if necessary, but the military aspect is kind of important.
I'm going to have to make a request: could one of the Soviet players join the German side as an AGC? Maybe one of the Soviet AGCs and have your Chief of Army take over the open Army Group - if Germany does the same, that will fill all of the Army Groups on both side. The ministries I'm not as concerned about - I can have the HoS handle it with advice if necessary, but the military aspect is kind of important.