MIAMI, July 11 : England manager Thomas Tuchel did not disagree with Jude Bellingham's opinion that the team put in a great shift in Saturday's win over Norway to reach the World Cup semi-finals, but he firmly believes they can and must improve.Bellingham again came to England's rescue, scoring both goals in the 2-1 victory after Norway had gone ahead, and he was told straight after the game that Tuchel was unhappy with the performance of his side."Oh well, whatever... It's difficult out there," man-of-the-match Bellingham said. "It's a tough shift. All the players put in a very tough shift. So my thoughts and appreciation go to the players who were out there who put in a great shift yet again."The first question Tuchel faced in his press conference was whether he agreed with Bellingham's