Outside of my expertise here. Mission operations (mission control), mission management, and space to ground communications engineering are my specialties. However, I did take a brief detour and was an orbit analyst for a while.
I have been working in the US space program for more than 27 years now. :-)
Oh please, I know your qualifications. You're awesome. No two ways about it.
What are your thoughts on the foam and the environmentalists though?
I've been working in the manned space program off and on for about 18 years myself. During the "off times" it has been in the military and commercial space arena.
Of course now I am safely out of the space game - and bored silly. :)