As a variety of commentators have already noted, Tillerson's primary legacy from his 14 months of service is a demoralized, disempowered State Department that is hemorrhaging talent and experience. But in one of the many ironies of the Trump era, Tillerson's departure — and his replacement by CIA Director Mike Pompeo — may nonetheless be bad news regarding what is to come in year two of the Trump presidency and beyond. It is conceivable that Tillerson's firing will return the State Department — and the secretary of state — to a more prominent role in American policy. Yet it may also indicate that Trump is progressively casting off the constraints that have prevented him from doing even greater damage.
Source : http://www.omaha.com/opinion/hal-brands-trump-shows-signs-of-breaking-free-from-year/article_d40a4b9f-8060-583c-ac9a-1e24772eadac.html