Henry Halleck
McDowell took the brunt of public vituperation for the defeat at Bull Run, but Scott, who had helped plan the battle, also received criticism. Lincoln replaced McDowell with McClellan, and the president began meeting with McClellan without Scott in attendance. Frustrated with his diminished standing, Scott submitted his resignation in October 1861. Though Scott favored General Henry Halleck as his successor, Lincoln instead made McClellan the army's senior officer.