Sven-Eric Bechtolf’s stagings of the Mozart/da Ponte operas in Salzburg concluded in 2015 with Le nozze di Figaro. I think it’s the most successful of the three. Bechtolf’s strengths lie in detailed direction of the action rather than bold conceptual statements and Nozze is probably the least in need of, and the least amenable to, the big Konzept. There aren’t any real dramaturgical problems to solve. It just works as written. I don’t think that’s so true for Don Giovanni or Così.