It has been nearly five months since Matt Nagy stood behind a podium at Halas Hall in a navy jacket and an orange tie and said he was pinching himself about being named the head coach of the Bears.



Well, he’s not pinching himself anymore. He’s teaching, leading and grinding. As he prepares for the final team activities this week before training camp, Nagy had a conversation with The Athletic about his “whirlwind” offseason and the approach he is taking to the job that once belonged to George Halas.



The enthusiasm that has been evident in public appearances also has been evident in a dark corner office in a silent building. I had heard he has been working insane hours in the still of springtime, and he said his typical day begins at 5:30 a.m. and ends at 10 p.m.



“You have to lay the foundation,” he said. “We have to get this thing right. It’s my responsibility. This is our first rodeo and there’s...