I agree that Holmes deserves to be removed from command, especially for the disaster that was the Battle of Helena. However, Holmes wasn't removed from command. After the defeat at Helena, the stress triggered an illness that forced Holmes to relinquish command of the District of Arkansas. He missed the Little Rock Campaign, and after although he resumed command again for the winter of 1863-64, he resigned before the Red River and Camden Expeditions began. He was in the words of his superior, E. Kirby Smith, "a true patriot, faithful, and devoted; time, his troubles, and responsibilities have preyed upon him, his memory is failing, he has no confidence in hiself, and is without fixity of purpose. I love him for his virtues, but a younger man should command the District of Arkansas, where boldness, energy, and activity, with prudence, are essential to success."1
1. O.R. Series 1, Vol. 34 (2), 870.