Week 3 of the Broncos’ head-coaching search began Monday when general manager George Paton and Co. interviewed Green Bay offensive coordinator Nathaniel Hackett for a second time. The Broncos’ contingent initially met with Hackett in Wisconsin on Jan. 14, the third of 10 candidates to interview. Hackett flew to the Denver area on Monday and was the first candidate to get a second interview and visit the Broncos’ facility. According to a source, Hackett spent all afternoon touring the offices, locker room, training area and weight room and having separate meetings with Paton and the Broncos’ support staff. Dallas defensive coordinator Dan Quinn is also expected to visit the Broncos this week, but the interview has not been scheduled.