With Claudio Marchisio out of UEFA EURO 2016 because of a knee injury, Italy coach Antonio Conte needs a Plan B for the Azzurri midfield.Marchisio, capped 54 times by Italy, tore his anterior cruciate ligament playing for Juventus on Sunday and will not be available until October. This is a blow for Conte, exacerbated by the fact another key central midfielder, Marco Verratti, has not played for Paris Saint-Germain since mid-February due to a persistent groin problem.If Verratti is fit, he surely starts this summer. But how does Conte replace Marchisio?Which system?In the recent friendlies against Spain and Germany, Conte tried a 3-4-3 formation....