I'm thinking of it this way:
Felix and Tarmoh are training partners and say they are friends.
Felix won the 200 in absolutely stunning and dominating fashion.
In turn, Felix was dominated in the 100 by Jeter and Sullivan. Her 10.92 at Doha notwithstanding, I think she will be similarly dominated again by at least Jeter, and probably the Jamaicans...should she run the 100 at The Olympics. Unless there were scheduling concerns, I thought and still think she had a better chance at double medaling with the 200/400 double. That 200 showed she had a great chance to beat Ross in her event.
If, as Felix says in the SI article that she is effectively using the 100 as a 'tune-up' for her 200, then I think she should take--as another poster--suggested. 'the high road'--and step aside and let Tarmoh have the 3rd slot in the 100...although, I think the USATF decision may preclude her from doing that at this point?...Tarmoh and Felix have to pick one of the options, or the USATF picks for them, with a coin flip. Is that right? The only silver lining in this for Tarmoh is that she is now an Olympian by virtue of inclusion in the 4x1...no matter how this 100 thing turns out. By the way, even with this situation unfolding, hard not to notice the great sportsmanship and camaraderie in our sport on display throughout these trials...from Nick Symmonds 'Get up buddy, you're an Olympian", to Ashton Eaton and his supportive decathlon competitors, to David Oliver's grace in the face of huge disappointment, to Galen Rupp's classy comments about Bernard Lagat after that mesmerizing 5K finish. Olympic years rock!