The Clarett case was also a very different beast - the league was being sued over its rules for player eligibility to be drafted/hired and was a full-on trial with the weighing of evidence. This is a different beast and one the NFL actually doesn't want to win (when calmer heads prevail.) If they win, it goes back to Berman to determine the issues he did not bother to take up - namely the actions of the commissioner as arbitrator and whether he was evidently partial. Should he rule on those three arguments in Brady's favor, it will more clearly destroy Goodell's ability to act as arbitrator in any future case than the current ruling does.