Sean Ingle in a well written editorial for the Guardian wonders how Salazar could prove to Mo Farah he didn't dope Galen Rupp 13 years ago. It is impossible to prove a negative right?
Ingle also notes that Farah was asked about Alberto coaching Mary Slaney when she tested positive and that Alberto told her he was not coaching her when she tested positive. Ingle then notes a few newspaper articles where Alberto was talking about Slaney's chances when she tested positive.
So do you think Alberto was coaching Mary or not?
The "case was stacked against Mary" is different than the "I wasn't coaching Mary" argument.