Overall, I don't think I need to prove that the Heer suffered from shortages of officers/ncos- it's pretty much well covered from any operational history of a battle circa mid 43-45' (you see the order of battle, and there are significant shortages in the divisions) and reading of ooB de-evolution (continuous cuts), which actually tracks the strategic situation. The army took millions of casualties, and many of these were in its leadership ranks. Personnel casualties up to 50,000 per division for the war. There is data on this, and the german style of command lead to high losses. Also, there was a tendency to split leadership to form more and more units, with caused further dilution.
Here is an example of GD's officer turnovers at the regimental level. (it was only a brigade-sized regiment before 1942) At lower levels it is much higher. :
http://members.shaw.ca/grossdeutschland/commanders.htm
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#Steam AliasWL%Streak
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