2019 vs 2023: The BEST 49ers Teams During the Kyle Shanahan Era, and Could 2026 Be BETTER?

San Francisco 49ers fans debate: Was the 2019 defense truly more dominant than the explosive 2023 offense? Hosts Brian Peacock and Eric Crocker, joined by Nick Winkler, rank every team from the Kyle Shanahan era—analyzing Super Bowl heartbreaks, roster shakeups, clutch quarterback shifts, and what sets the best squads apart. From DeForest Buckner, Nick Bosa, and Fred Warner anchoring the defense to Christian McCaffrey, Brock Purdy, Brandon Aiyuk, and Deebo Samuel piling up points, each roster gets scrutinized for its strengths and fatal flaws.

The trio explores which season showcased Kyle Shanahan’s finest coaching, how quarterback injuries shaped playoff runs, and whether the 2026 San Francisco 49ers have what it takes to eclipse past powerhouses. Who claims the crown as Shanahan’s best team—and will the next roster finally hoist the Lombardi Trophy? Dive into every pivotal moment and unexpected twist from 2017 through 2026.

San Francisco 49ers fans are treated to daily news and analysis with Locked On 49ers, hosted by football analyst Brian Peacock and former NFL/AFL cornerback Eric Crocker.

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