I found this piece of article which has an interesting claim; if Manstein had continued his attack in late June 1941 over the Dvina river like the attack in west after Meuse river 1940 by Guderian things might have been different in the AGN...?
http://www.wargamesdirectory.com/htm...zersEast/4.asp
"Faced with the historical analogy suggested between the Meuse and the Dvina, it is tempting to state that, had Guderian ( replacing Manstein ) crossed the Dvina four days and five hours into the campaign with unscathed forces, he would have projected himself directly toward Leningrad, dragging a reluctant high command to a collapse of the Soviet Baltic front, or at least the severe dislocation of Soviet forces and encirclement of major forces by the German 18th Army along the Baltic Sea. The aggressive continuation of the march by Manstein's 56th Panzer Corps ( now Guderian´s ) would have forced the switch of Reinhardt's delayed 41st Panzer Corps from a side-by-side advance to the Dvina at Jakobstadt to a commitment in depth behind Manstein ( Guderian ). With that echeloning of forces, the Germans would have automatically cleared the supply and communications lines to Manstein ( Guderian) and added enough strength, with three additional mobile divisions and one attached hard-marching infantry division, to drive immediately through Dvinsk to Pskov and Leningrad."
Presented with the grand opportunity to develop the operations noted above, Hoepner opted instead for a safe, staff-college solution in the north, ordering the 41st Panzer Corps to advance on Jakobstadt, while the 56th Panzer Corps eventually spent seven days(!!) waiting for its companion corps to force a crossing of a river bridged a week previously.
This lack of initiative by Manstein stands up poorly compared with Guderian's uninterrupted exploitation of the earlier Meuse crossing, particularly since Guderian never received instructions on what to do after he crossed the Meuse. German operations were so finely tuned that had Guderian waited for instructions from another conservative commander (Kleist) in the bridgehead over the Meuse on 13 May 1940, it is doubtful that the French campaign would have been a German success. The analogy shows that Manstein realistically could have been expected to forge ahead out of the bridgehead, dragging a reluctant high command in Army Group North along the road to Pskov and Leningrad as Guderian dragged Kleist and the Fuhrer himself to the English Channel in 1940.
???
[ 30. September 2004, 12:56 PM: Message edited by: Kai-Petri ]