Brown says there,
Concentration in time early became a firm principle of Union strategy... The first attempt at concentration in time came in the winter of 1862, when Lincoln issued his order for all armies to advance on the same day.I want to explore this mistake at length, particularly as it pertains to Winfield Scott's first and second coordinated offensives of June 1861. Will post the first installment this weekend.
*James McPherson's taking of this material from Brown and Clausewitz without credit was explored in an earlier series of posts.