Some folks seem to be having a hard time grasping why Nemec's large improvement after college keeps being mentioned.
- large improvements are not enough to convict a runner, but they can provide a strong suggestion as to who is likely doping
- if somebody does make a large improvement, some sort of logical explanation would go a long way to dispelling accusations, i.e. in college I only averaged 20 mpw, but after I graduated, I built up to 100 mpw (generally speaking, greatly increased volume is by far the most likely valid explanation; breathing exercises, change in diet, etc are much more suspect)
- amount of improvement is important. Improving a few seconds per mile, or more, is to be expected as a runner develops, but going from long-time college pack fodder to Olympian is less common, and requires a more detailed explanation to make it believable.
- people who show massive improvement will generally have shown some hint of their ability before. Those close to them might note that the person seemed to have a ton of potential if they ever used it. Maybe they won their high school state meet in their first year of running. Maybe their previous modest personal bests were achieved with a shocking lack of training. That sort of thing.
Of Nemec's college performance, I think it would be charitable to say her PRs were roughly equivalent to a male who ran 14:30/30:30. Now, if some guy who ran those times in college (actually training and running on a serious team for multiple years, etc), and then a couple of years later ended up running a marathon that made him #6 in US history, you can't tell me that you wouldn't at least find it very surprising and interesting. Not enough to convict him of doping, to be sure, but you'd expect more of an explanation than that he started running some of his training runs really, really slowly to learn to burn fat, and that he learned some breathing tricks.
The couple of posters who tried to make out like Nemec improving to 2:25 after what she did in college wasn't really that surprising or unusual, you are just out of your minds.