Deputy Defense Secretary Bob Work on Thursday released a list of officials designated to serve in "acting" capacities for a host of Pentagon leadership positions as many Obama administration appointees exit government service in advance of the inauguration of President-elect Donald Trump on Friday. The designations are effective Jan. 20. Some key personnel include: James MacStravic as acting under secretary of acquisition, technology and logistics; John Roth as acting comptroller; and Scott Comes as acting director of cost...