The AI does often commit commanders by skill level and not feats, so many other german panzer leaders, so Rommel, Manstein, Hauser & friends often end up as INF-division commanders.
IIRC poor Manstein actually was in command of an infantry corps for the invasion of France. I know that's not really relevent, but it is kind of amusing to know the OKW was almost as bad at assigning leaders as the AI is