Now that's a broad, sweeping, generalization. Unless you are going to get to specific events or athletes (in which case you'd better have something more than 'they didn't run as fast as I thought they should'), your questions have no basis. How do you account for athletes who did not peak properly, for those who missed training due to injury, for those who hit the pinnacle of their career last year? How about those athletes who are on the upswing, those who timed their season perfectly and beat out others they weren't expected to?
>there an unseen drug scare (threat) surfacing at
>the championships that event winners knew they
>couldn't get around?
I'm pretty sure all event winners are tested. Or do you mean potential event winners?