The Official History's assessment was that at the end of July 1942, the British had not figured how to use infantry and armour in cooperation, at least in a changed environment dominated by more powerful anti-tank guns (used offensively) and by widespread use of anti-tank mines. The British plans for the battles in July were formulated as if the old situation were still in place. That is, that infantry could attack and open up corridors for armour to advance into the enemy's rear area.
The situation had also changed in that Rommel had gone on the defensive, rather than being prepared to blitz to exploit British weakness. The land in the narrows between the Qattara Depression and the Mediterranean was fast being blocked by mines and barbed wire. Fortunately for the British, by November, they would be commanded by the master of the fixed-piece battle, Bernard Law Montgomery.