JANUARY 29, 9:40pm: Troy Renck of Denver7 is in line with the NFL Network pair in terms of the new names being added to Denver’s search with things having not gone according to plan so far. However, 9News’ Mike Klis reports (via Twitter) that the Broncos are actually still focused on their original list of candidates who are still available, and that “there is a plan” the organization is on course to follow. In any case, Denver will be a key team to watch as the HC story unfolds in the coming days.
JANUARY 29, 7:30am: Ian Rapoport and Tom Pelissero of NFL.com hear that, even after Harbaugh’s announcement that he would be remaining at Michigan, he continued to have conversations with Penner and Broncos GM George Paton. Penner did not make an offer to Harbaugh during last week’s summit, though it does not appear that the door to a Harbaugh-Denver partnership is closed quite yet. Indeed, Harbaugh has reportedly said that the Broncos’ job is the one that he would want if he elects to return to the pros.
Both NFL.com and ESPN’s Jeremy Fowler (via Twitter) say that the Broncos could begin to expand their head coaching search given that some of their top choices in Payton, Harbaugh, Ryans, and Cowboys defensive coordinator Dan Quinn are either out of the running entirely or no longer appear to be likely options. If that happens, Eagles defensive coordinator Jonathan Gannon and Bengals offensive coordinator Brian Callahan could get a call, and the club has reportedly done research on Giants offensive coordinator Mike Kafka.
In addition, NFL.com reports that candidates like Raheem Morris, David Shaw, Jim Caldwell, and Ejiro Evero could all be back in play, although Troy Renck of Denver7 suggests otherwise (Twitter link).
JANUARY 28: Michigan head coach Jim Harbaugh was once again one of the names most commonly floated as a candidate in advance of this year’s NFL head coaching cycle. However, he ultimately remained committed to staying in Ann Arbor for at least the 2023 season, a decision which seemed to mark the end of his involvement in discussions surrounding the league’s remaining vacancies. 
Despite that, Broncos CEO Greg Penner flew to Ann Arbor to meet in person with Harbaugh last week, reports ESPN’s Adam Schefter. The latter interviewed with Denver virtually as part of their initial list of candidates to replace Nathaniel Hackett; his experience made him – along with Sean Payton – a serious contender for the position…