I'm sorry I didn't understand your idea. My sense is that by retreating as I did, the Germans will not be able to attack my guys effectively south of Lake Ladoga. The cost of moving through enemy hexes, plus the small screen of mobile units that I left out in front towards the north end of that line, means that they will be drastically slowed. So I get another turn to prepare for full-on attacks. Leaving a couple of divisions in the two towns is also about slowing the enemy at relatively low cost. We'll lose those units, but it will take a full-on attack by five or so German divisions, which will cost them 15 or so movement points, essentially stopping them in place for a turn. Actually, it could be two turns, because given that they have to move a few hexes to get to the towns (at least to Velikie Luki), they probably won't be able to conduct effective attacks this turn and will lose next turn as well to carry out the attacks. This is particularly true if Air Command can scrape up some transports to deliver supplies to those guys during next turn's air phase.
The only place where the Germans will be fully combat-effective in my region is in the Leningrad area, where their armored divisions (five of them, three panzer corps) are right up against my guys. That's why I put the majority of my troops inside the Luga-Novgorod line. I'm actually most concerned that I didn't do enough up there. I have a triple line, which is usually enough, but since my general at the northern end of that line (23rd army) is miserable in his morale rating, I'm afraid that his guys will rout instead of retreating when attacked by that X=X stack of panzers. That's why I requested that if we have enough AP left (11, I think), he be replaced by somebody with a decent morale rating.