That is probably right. Marshall was quite protective of the men he selected for his staff and actual field commands. That is why Eisenhower got his career during the war. He had Marshall's complate confidence and rarely made a mistake that could not be reversed. Fredenhall was another matter. He couldn't cooperate either British (Fredenhall had Anglophobia) or French and was a bad field commander. Alexander who was not impressed with first test of US Army at Kasserine Pass remarked acidly to Eisenhower "I am sure you have men better than that" (referring whom I wonder) Still Eisenhower couldn't bring himself to sack Fredenhall and did it reluctantly after Harmon and Bradley's critism of him. He actually believed all would be well until he was relieved from command of 2nd US Corps. Referring Fredenhall Eisenhower remarked while he was sent back to States "Too bad he was an effective regiment commander." Maybe that was the problem. He did not command anything larger than a regiment. Same thing happened with US military atteche Colonel Bonnar Fellers affair in Egypt. After it became clear that he was Rommel's best source of intelligence during 1942 he was packed and sent home (he was an Anglophope too constantly sending reports that British were fighting patheticly and finished in North Africa ) but then MacArthur took Fellers to his own staff basicly promoted him to Brig General and covered him , advaced his career during South East Pacific Campaign and occupation of Japan. Eisenhower was so hostile to Fellers that he once remarked "Any friend of Bonnar Fellers is an enemy of mine !" As long as you have right connections you will be covered no matter how badly you screw things up.