Btw I think he's mad if he intends to sue. Unless he can smash this case into next week there is a good chance his career will never recover. It is a very difficult thing to defend yourself against detailed allegations and it will cost him. Even if he wins, there can be an appeal.
Byline presumably have not been frightened off by a few solicitors letters. They would have known they would be sued from the start. The more complex it is, the harder to beat. It's not s smear campaign but it is clever. Should it go to court, Wooten would have to refute all of the claims, each one, and probably many of them are not actionable at all. In fact, they will be useful evidence to build a picture of his alleged behaviour.
Also never underestimate just how savage a judge can be. It won't matter what the politics are in court. A judgment can be career ruining even if you win at libel.