Was General Thomas Slow at Nashville?

It was under such circumstances and conditions which, after all, are but faintly shadowed forth by the facts here stated, that General Thomas began to concentrate his conglomerate forces in Hood's front, and begin under fire the work of organizing and refitting an army. With superhuman effort, and such loyal assistance and energy from officers and soldiers as were not elsewhere exhibited during the war, because not previously required, General Thomas set about the task of preparing the means of overthrowing Hood. Deliberate action and the extreme of prudence were essentials of the situation. The objective of Hood's campaign, under suggestions from President Davis, was the Ohio River. There was no reserve force in sight or within summoning distance, or immediately available anywhere in case of reverses. Thomas could not afford to take the slightest risks so long as his own position was not imperilled. It was not alone the immediate interests confided to his keeping and defense which hinged upon his success or failure, but both Grant and Sherman and possibly the Union itself were to stand or fall with such success or failure. Had Hood succeeded, as at the first he might have succeeded without fault of Thomas, or even fair ground for reflection upon him, what would have been said of Sherman for marching off to the sea, leaving the central West without sufficient protection, or of General Grant for having allowed him to go?

And because the deliberate, prudent, imperturbable, and always successful Thomas appreciated the situation, and determined to be ready to annihilate his enemy before he struck, he was hastily declared to be slow by those he was preparing to save.