His issue isn't playing from the back, the issue is the area's he is trying to build from. What he did tonight is no different than what he has done for us over the last 6-12 months its just getting more scrutiny as it was on the national level. He seemed to learn after the mistakes today and improved as the game went on but he has a bad habit of in general not learning from the mistake long term.
These mistakes continue to happen from overplaying in bad situations. The Janssen one was pure stupidity, he had no easy pass and was the last man, just go to the GK and recycle play don't try and over complicate it and end up slipping over leaving what should have been a goal.
His pass for the first goal and the pass to Walcott where ideal examples of the correct areas to play, we or whoever he ends up with have to hope he will start learning from his mistakes much like other defenders have over the years e.g pique, hummels, ferdinand, lucio etc....
I still don't think Martinez is the right man to get these mistakes out of his game though, he encourages it too much and more needs to be done on telling him when in danger forget trying to build an attack just focus on getting the team reset and then building when situation is more suited.