The Milwaukee Bucks franchise faces a pivotal crossroads following the abrupt departure of head coach Doc Rivers. His tenure, marked by significant challenges and unmet expectations, has opened a door for a fresh leadership vision. This dramatic shift creates a prime, perhaps overdue, opportunity for an accomplished assistant coach to finally step into an NBA head coaching role. All eyes are now turning to Boston Celtics assistant, Sam Cassell, whose extensive experience and proven impact make him a compelling candidate to guide the Bucks through their imminent rebuild.
Doc Rivers’ Brief, Tumultuous Stint in Milwaukee Concludes
Doc Rivers’ two-and-a-half-season coaching journey with the Milwaukee Bucks has officially ended. On April 12, 2026, the team confirmed his decision to step down after a challenging period. Rivers, who inked a substantial $40 million deal upon his hiring in January 2024, will reportedly receive payment for the remaining year on his contract. This decision follows a highly disappointing 2025-26 season, which saw the Bucks finish with a dismal 32-50 record.
Rivers expressed a deep affection for Milwaukee, citing the privilege of returning to his roots. While he admitted disappointment with the team’s performance, he conveyed gratitude for the experience and fan support. Team sources hinted at a potential new role within the organization. However, Rivers himself suggested a desire for a break from the demanding NBA schedule. He looks forward to spending more time with his seven grandchildren. This sentiment echoed through his comments as the season concluded, highlighting the personal toll of the role.
A Difficult Chapter for a Hall of Famer
Under Rivers’ leadership, the Milwaukee Bucks compiled a regular-season record of 97-103. The recently concluded 2025-26 season marked his first full losing season since 2006-07 with the Boston Celtics. Despite these struggles, Rivers’ legacy remains strong. He was selected for enshrinement in the Naismith Basketball Hall of Fame as part of the 2026 class. His overall NBA coaching career spans 27 seasons across five teams, boasting an impressive 1,194-866 (.580) regular-season record. This places him sixth on the NBA’s all-time wins list.
Rivers originally took over in January 2024, replacing Adrian Griffin, who had a 30-13 record. The move aimed to bring more experienced leadership to a team featuring Giannis Antetokounmpo and Damian Lillard. However, the team struggled under Rivers. They finished the 2023-24 season 17-19 and lost to the Pacers in the first round. Antetokounmpo missed that series due to injury.
The 2024-25 campaign also suffered from injuries and chemistry issues. Lillard dealt with deep vein thrombosis and an Achilles tear. Khris Middleton missed significant time before being traded. These widespread health issues across multiple key players severely hampered the team’s ability to build consistency and momentum. Rivers himself acknowledged the constant battle with health issues, stating, “It’s hard… Losing, I don’t give a crap what the reasons are, I’m just too competitive.”
The Bucks Face a Crucial Rebuild and Uncertain Future
The 2025-26 season was an “utter disaster” for the Bucks, ending their nine-year playoff streak. Their 32-50 finish marked their worst record since 2013-14. This sharp decline is largely attributable to severe injury woes and an inconsistent offense. Two-time MVP Giannis Antetokounmpo played in only 36 games due to calf strains. A public disagreement even arose regarding his injury status late in the season. Additionally, Kevin Porter Jr., the team’s second-leading scorer, appeared in just 38 games.
Offensively, Milwaukee was among the league’s least effective teams, averaging 110.6 points per game (second-lowest). They ranked poorly in offensive rating and were the worst offensive rebounding team. Defensively, the performance was equally concerning, ranking 26th in efficiency. General manager Jon Horst now faces a critical offseason. A significant decision looms regarding Antetokounmpo’s long-term future with the franchise. The team’s struggles and Rivers’ departure signal the beginning of a challenging rebuilding phase.
Sam Cassell: A Head Coaching Opportunity Long Overdue
Amidst Milwaukee’s turmoil, Boston Celtics assistant coach Sam Cassell emerges as a top candidate. His opportunity to become an NBA head coach is widely considered long overdue. Cassell has served as an assistant coach since the fall of 2009, patiently accumulating invaluable experience. He spent considerable time working under Doc Rivers in Los Angeles and Philadelphia. This mentorship provided him with deep insight into championship-level coaching strategies.
Cassell’s impact on the Celtics has been undeniable. Since joining Joe Mazzulla’s staff, his value has been clear. Boston’s 2023 playoff run was bumpy, partly due to a coaching staff that lost its main assistant mid-season and included members loyal to former coach Ime Udoka. However, once Cassell and Charles Lee joined the squad, the team became significantly more fortified. Even after Lee’s departure, Cassell, as Mazzulla’s right-hand man, has been instrumental. He helped the Celtics navigate a highly successful regular season that exceeded many expectations. This demonstrates his ability to contribute to a winning culture and adapt to changing team dynamics.
Breaking the Cycle: Why Cassell Deserves This Shot
The NBA often sees a “sad fact” in coaching hires: assistant coaches frequently struggle to ascend to head coach roles. Teams typically favor candidates with prior head coaching experience, as seen with Milwaukee’s initial hiring of Rivers. This trend overlooks a wealth of talent and readiness within assistant ranks. It’s particularly “egregious” when former players with no prior coaching experience, such as JJ Redick, Steve Nash, and Jason Kidd, secure head coaching positions immediately. Meanwhile, a seasoned professional like Sam Cassell has served as an assistant for over a decade and a half.
Cassell has proven his readiness. His recent success with the Celtics, guiding the team as Mazzulla’s key confidante, underscores his capabilities. While being Rivers’ protégé might not carry the same esteem it once did, Cassell has carved out his own reputation. He has demonstrated leadership and strategic acumen beyond mere association. He embodies the blend of experience, player development skills, and a winning mindset that struggling franchises like the Bucks desperately need.
The Perfect Fit: Cassell’s Connection to Milwaukee
Beyond his coaching credentials, Sam Cassell possesses a unique, compelling connection to the Milwaukee Bucks franchise. He previously played for the team. More significantly, he was a major factor in their most successful playoff run in almost 30 years, reaching the Eastern Conference Finals in 2001. This deep historical tie offers an immediate resonance with the fan base and a profound understanding of the organization’s past triumphs.
Cassell revisited his roots when he returned to Boston 15 years after winning a title there as a player. Now, as the Bucks seek a new direction, the opportunity for him to return to Wisconsin is ripe. It offers him the chance he has long deserved: to prove himself as an NBA head coach. His blend of extensive experience, recent success with a top contender, and a genuine connection to Milwaukee makes him an exceptionally strong candidate. Hiring Cassell could inject much-needed stability and a fresh perspective into a franchise grappling with significant uncertainty.
The departure of Doc Rivers creates a monumental opportunity for the Milwaukee Bucks to pivot. This moment is not just about finding a new coach; it’s about setting a clear direction for a storied franchise. Sam Cassell presents a unique blend of proven expertise and a historical bond, making him the ideal leader to navigate this critical transition.
Frequently Asked Questions
Why did Doc Rivers leave the Milwaukee Bucks?
Doc Rivers stepped down as the Milwaukee Bucks’ head coach after a challenging two-and-a-half-season tenure, a decision announced on April 12, 2026. This followed a highly disappointing 32-50 record in the 2025-26 season, which ended the team’s nine-year playoff streak. Rivers cited his personal desire to spend more time with his seven grandchildren as a factor. He also acknowledged the team’s struggles, which were heavily impacted by significant player injuries to stars like Giannis Antetokounmpo and Damian Lillard, making it difficult to achieve consistent success.
Should Sam Cassell be the next head coach of the Milwaukee Bucks?
Many argue that Sam Cassell is an exceptionally strong candidate for the Milwaukee Bucks’ head coaching vacancy. He brings over a decade and a half of assistant coaching experience, including significant time under Doc Rivers and recent success as Joe Mazzulla’s key assistant with the Boston Celtics. His contributions to the Celtics’ fortified coaching staff and strong regular season performance highlight his readiness. Furthermore, Cassell has a unique historical connection to the Bucks, having played for them and been a major part of their successful 2001 playoff run, which could resonate well with the fanbase and provide an immediate cultural fit.
What challenges do the Milwaukee Bucks face in their upcoming rebuild?
The Milwaukee Bucks face numerous significant challenges as they enter a rebuilding phase. The team concluded the 2025-26 season with a 32-50 record, signaling a stark departure from their previous success. Key players like Giannis Antetokounmpo missed substantial time due to injury, raising questions about his long-term future with the franchise. The team also struggled defensively and offensively, ranking among the league’s worst in several categories. General manager Jon Horst has a crucial offseason ahead, needing to address roster construction, team chemistry, and potentially make difficult decisions regarding their star player to reshape the team’s competitive outlook.
