I talked to Jill Geer today about Will Leer's situation and asked for photos of the finish.
Thanks to her help, USATF has posted the photo finish here:
Also she said in terms of chasing times it is restricted to the four people who state their intentions to run the meet. So wit Lagat out of the 1500m Leer is able to go and chase the time.
She also then added that everything really is at the discretion of the Committee Chairman (John Chaplin) so that leaves open the possibility if only 1 guy in the 4 got the "A" standard and then 5th place David Torrence or for that matter US leader Russell Brown were to hit the "A" standard they could be added to the team to let the US have a full 3 member team.