Attacking as the Soviets in 42

[Weasel]

It is July 42 now (yes I am slow, but each turn still takes me 90 minutes + to play) and with 8M men in the field I am trying to push back the Germans.  All of my attacks seem to fail even with 9 divisions attacking; am I correct in assuming that with the low morale of the Russians in 42 that the only real way of winning a fight is to attack with corps, say 9 corps on 3 sides of the hex?

Right now the game is a stalemate, the Germans cannot advance through my hordes of men, but I cannot either so the line is frozen 12 hexes south of Leningrad and about 8 hexes west of Smolensk and Odessa.

Also, I have conducted numerous airfield attacks on the Germans, using 160 fighters and 100 bombers and I fail to destroy anything on the ground (recon shows aircraft there) with 19 German fighters knocked 19 of my fighters out of the air.