My sense was that Henner (=Benson?) was more of a fan of the shorter, faster school of training and that this did not generally work very well in terms of long-term development (see Chris Lukezic, a 3:33 runner at 23 or so as someone training with Alan Webb, but who declined and left soon for the big prospects of airbnb), so that you might get some initial improvement from the speedwork while you still have the base from your old coach but when the base is gone, you no longer have anything to sharpen. She took advantage of two top contenders falling and won world's, but as the times fell back to normal doping territory before the Olympics, her chances as a 4:03-4:07 runner were nil. Wetmore, contra Rojo, developed her over a period of numerous years into a 3:59 1500m runner and 9:12 AR steepler and he did it in part by getting her a great base. If next summer is not too soon, we'll see that runner again and maybe something even better in the following years. As for NCAA rules about training with athletes, that may make some sense for money sports like basketball and football, but we need all the help we can get to develop running in the United States, because our elite athletes do not have $20 million facilities created for them: they usually need access to college tracks and training partners, and their presence would be mutually beneficial for the college athletes by providing far better training partners and great examples, and you shouldn't have to do the assistant coach thing for that to occur. Training partners make people better and there's no harm in that.