So, whether it be due to a lack/mishandling of the no-retreat order, Stalin wisely deciding to focus on AGC rather than trying an overall offensive, or just luck, a worst-case/near-worst-case scenario for the Germans (or at least Army Group Center) happens in the Battle of Moscow in 1941.
Question is, what do they do in 1942? Is their OTL 1943-onwards vicious cycle of retreats and outmaneuvering by an ever-better Red Army going to be the order of the day, or do they still have the strength to try a Blue-style attack?