Conversation so far:
When was Erich Ludendorff with Hindenburg?
Erich Ludendorff was with Hindenburg on 29 August 1916
What rank was Erich Ludendorffduring 1916?
Erich Ludendorff was again his chief of staff as first Quartermaster general, with the stipulation that he would have joint responsibility.
What was Erich Ludendorff role as chief of staff?
Erich Ludendoriff was a quartermaster general. This role is the staff officer in charge of supplies for a whole army. He is in charge of quartermaster units and personnel.

Question: Was he good at his position assigned to him?
Self-contained rewrite: Was Erich Ludendorff good at the Quartermaster General position assigned to him?