My 2 cents:
Do sprinters routinely duck other sprinters? Yes.
Do sprinters make up excuses not to run? Yes.
Do sprinters vastly exaggerate niggles into injuries, for such purposes? Yes.
In a vacuum, should a sprinter always test himself against the best available, should the opportunity present itself? Yes.
In the real world, is this practically possible? No.
Should a sponsored athlete make concessions for their sponsor? Yes, but they should be made with the understanding that the better the athlete performs and the bigger the stage, the better it is for the sponsor.
Does Gay need a race before trials? Yes. There is nothing like an actual race, no matter how good simulations are in practice.
Should he have run at Clermont instead? From a fan's perspective, no--the wind was ridiculous, and there was really no valid competition against which to measure his relative performance. From Gay's personal perspective, maybe yes--there was no travel time, it was his home track. From Adidas' perspective? No. There was no audience, no exposure. Just adding Gay's name to the NYC startlist is huge. If there is a single meet that his sponsor would want him to run this year, it would be NYC. They had better hope that he actually runs, no matter what level his performance.
Will NYC be a good race, psychologically, for Gay? I think so. Even though he won't run against Blake, he will most definitely have some serious competition in his "B" race--he will likely have to run against someone who has gone 10.10 this year, and against someone who has a sub-10.10 PR. Thompson, Phiri, and Bailey D. could be in that heat.
Can he injure by pushing? Yes.
Must he push? Yes, because his will to win every race he runs is overwhelmingly strong, unless he has learned some moderation. I have never seen Gay NOT try to wind it up, other than in the prelims at 2011 nationals.
Is running the B-race a cop-out? No, because there already WAS a B-race on the schedule, therefore the decision was his to make. Don't expect miracles from Gay--the B race is the race he probably SHOULD be in. I would be pleasantly surprised if he went under 10.00, but I do not expect him to do so.
Gay runs the kind of race where his start is rather forgiving on the body--there is neither tremendous impact nor tremensous extension, and therefore he can run a 100m with minimal chances of start-related injury--and there are many, achilles, groin, and abs especially. I expect to see his old start, performed rather smoothly and slowly.
To James: Gay's adjusted sub-9.8 clockings are 9.78, 9.75, 9.85, 9.79, 9.75, 9.79, and 9.84 (the last from Clermont 2011, and bogus). Five 9.7's, averaging 9.77, make him historically a solid "9.7-guy" in my book.
James is correct about Powell folding like a cheap lawn chair, but I don't think it's because he's intimidated--I think it's because he's a flake, maybe actually ambivalent. I don't think he's sufficiently clued-in to what is actually happening to be intimidated. He shuts down no matter if he is in front, tied, or behind, whether it is rainy or dry, no matter if it is warm or cold, if there is wind or not. I think he just flakes out completely.
He will be really dangerous if he clues-in, like he did at 2011 nationals. If not, he might not even make the team.
I don't think this effort by Gay is designed to keep any of the other leaders guessing--it's a rust-buster that will help the race director fill the seats, which should please his sponsor.