Well,"the German Generals talk" is a classic exemple of defeated generals looking for a culprit that could be blamed for the defeat ,the culprit being easily found :Hitler ,while the German successes were,of course,due to the generals
One exemple :Blumentritt and Rundsstedt claimed that due to the stupid Hitler (you know,the Austrian corporal
)the Germans failed to capture the BEF at Dunkirk,while the truth is that the haltorder was given originally by von Rundstedt .
There also are exemples of :scratch my back and I will scratch yours :Lidddell Hart (he has been proved to be an impostor) praised von Thoma as being a gentleman (almost as civilised as a Briton
)and von Thoma answering,of course ,:the German tank officers closely followed the British ideas on armoured warfare,particularly your own(haha) and general Fuller's.
A flatterer gets as answer a lot of flattery .
Liddell Hart has been debunked in "Liddell Hart and the weigth of history " by professor John Mearsheimer .
Whatever,I would be very suspicious on any book about WWII that was published a few years after the war .