Of course, while the media has been busy shrieking over his secret membership in Soviet/Czech/Venezuelan intelligence, and his serial acts of violence against the feelings of The Troops/The Queen/Chuckles Umunna, Corbyn has been diligently co-ordinating between Brussels, the member heads-of-state, and remain Tories to put in place the nucleus of what is now by far the most likely deal to actually pass.
If Britain does manage to stay in the Customs Union and Single Market, and thus, to rescue what remains of its economy, it will be thanks far more to Corbyn than anybody else.