It's pretty simple at least on one level. Mark Block is still coaching Carmelita Jeter. Two cheaters still sticking together, and right now she is a hot sprinter, world champ, running ridiculous times (especially with her 11.5 REAL talents), and is Nike's golden girl for the moment. Nike doesn't have the balls to turn away someone who's winning, even though she's doped to the gills, an the guy who's coaching her is still a corrupt connected player in the big game. It's all typical corrupt BS.
Jeter's response is classic, she's being coached. "Shhh, dont mention Mark and we'll pay you more".
Letsrun could even go a step further and support full BOYCOTTS of cheaters like Jeter. It would show the people like at Nike that fans won't tolerate being lied to and support people who lie, cheat, and steal for a living.