Jeff: here are the top four changes I've seen over the past 5 years –
1. Sedentary people running marathons. They have empowered millions to start working out and improve health and fitness
2. Lack of coverage for the sport of running. The coverage for track and field as a percentage of other sports has been reduced significantly because we don't have good promoters who lead us.
3. Lack of opportunity for male distance runners in college – reducing our Olympic hopes.
4. The incredible growth of women's running.