KANSAS CITY, Mo. – Broadway is just eight miles from MetLife Stadium, across the Hudson River, but for John Harbaugh on Tuesday, his introductory press conference as the New York Giants’ head coach felt like stepping onto a Broadway stage.

The moment marked the beginning of Harbaugh’s “second act” in the NFL, a fresh chapter in a career already defined by longevity, success, and mentorship under some of the league’s most respected coaches, including Andy Reid.

“Andy’s a man of few words,” Harbaugh said during the press conference, reflecting on the advice Reid had shared with him years ago. “His four words to me were, ‘Change can be good.’ That’s what he said. Change can be good.”

The sentiment resonates not only with Harbaugh’s career but also with the Kansas City Chiefs, who recently made a pivotal coaching change by bringing back Eric Bieniemy as offensive coordinator, blending continuity with evolution in their offensive strategy.

Harbaugh’s transition to the Giants came after he was fired by the Baltimore Ravens, the organization he led since 2008, marking the end of a remarkable 18-season tenure that included sustained competitiveness, playoff appearances, and a Super Bowl championship.

Before taking the Ravens’ head coaching job, Harbaugh spent nine years under Andy Reid in Philadelphia, eight of which were as special-teams coordinator, gaining invaluable experience from one of the league’s most innovative minds and learning lessons that would shape his own coaching philosophy.

For Reid, entering 2026 will mark his 14th season as head coach of the Chiefs, equaling the number of seasons he spent as the Philadelphia Eagles’ head coach. His career in Philadelphia saw him compile a 140-102-1 record over 243 games, including multiple NFC title appearances.

Through his first 13 seasons in Kansas City, Reid has amassed a 167-72 record in 239 games, demonstrating remarkable consistency and longevity, even surviving his first losing season as Chiefs head coach in 2025, a rare blip in an otherwise stellar career.

“He was excited,” Harbaugh said of Reid’s reaction to the Giants’ hire, highlighting the personal bond between the two coaches. “He’s fired up for us. He’s a good friend. … How about we do this: Let’s sign up for that deal right now.”

While Reid’s career in Act One lacked a Super Bowl victory, Harbaugh achieved what Reid had not at that point: winning a championship, leading the Ravens to a Super Bowl XLVII victory over Harbaugh’s own brother, Jim, and the San Francisco 49ers at the conclusion of the 2012 season.

Reid, during his first tenure in Philadelphia, guided the Eagles to four consecutive NFC title games, ultimately falling short in the Super Bowl in 2004 against the New England Patriots led by Bill Belichick and Tom Brady, demonstrating consistent dominance but elusive ultimate success.

Before leading the Chiefs to consecutive Super Bowl titles in 2022 and 2023, no NFL team had repeated as league champion since the 2004 Patriots, a feat highlighting Reid’s long-term ability to adapt, innovate, and sustain success at the highest level of the sport.

Over 18 seasons as Ravens head coach, Harbaugh finished with a 306-191 record in 497 games, cementing his status as one of the most successful and respected head coaches of his generation, balancing regular-season dominance with postseason achievement.

Entering Year 14 in Kansas City, Reid now holds the NFL’s longest active tenure for a head coach, following Pittsburgh’s Mike Tomlin stepping away, with Harbaugh previously holding the league’s second-longest tenure before his move to New York, illustrating the stability both men brought to their franchises.

The juxtaposition of Harbaugh and Reid’s careers highlights different paths to success, where longevity, mentorship, and adaptability intersect with championship victories, legacy-building, and the ability to navigate personnel and strategic changes over decades in the NFL.

Ironically, while Harbaugh moves into a new chapter with the Giants, Reid’s “change” in Kansas City—reintroducing Bieniemy as offensive coordinator—signals that even established dynasties require evolution, blending lessons from past successes with forward-thinking strategy for continued competitiveness.

Both coaches embody the NFL’s rare combination of tenure, innovation, and personal mentorship, demonstrating that long-term success is often as much about cultivating relationships and learning from peers as it is about wins, losses, or Super Bowl rings.

As the 2026 season approaches, all eyes will be on Kansas City and New York, tracking the impact of Reid’s continuity and Harbaugh’s fresh start, two coaches whose intertwined histories provide a compelling narrative about change, growth, and the pursuit of excellence in professional football.