I can't tell you why a particular athlete would leave a certain coach, but I can tell you there could be many reasons. They could have personality conflicts. They could have misunderstandings. Lots of stuff can happen.

I've found that my athletes run their best races after about 10 weeks of intense training.

I like the marathon because it's one race where you can find out who's really the toughest. On the track, sometimes a guy can just pull away, and you want to stay with him but you don't have the leg speed. The marathon is slow enough that anyone can stay with you if he wants, if he has the will. The marathon is ultimately a test of will.

I've never enjoyed my running more. I also do 200 sit-ups a day, 60 push-ups, and a lot of stretching. I've had some back issues. I think the stretching helps with that.

There are a lot of guys out there now who know they are not working as hard as other people. I can't fathom how they think.

Trust me, my runners aren't going to run one event while looking past it to the second event. When they get on the line for the 10K, that's a do-or-die situation for them.

The marathon is like a bullfight.