Nick Bosa said DeForest Buckner was the one whose head was spinning a little after Week 9, even as the San Francisco 49ers were coming off a win over the Las Vegas Raiders. The joke landed because the roles have flipped from 2019, when Bosa arrived and Buckner was already one of the steady pieces on the interior line.
Bosa made the comment after the game, saying it was funny to see Buckner trying to get everything down now that he is back in San Francisco. Buckner spent his first four seasons in the Bay, then spent nearly seven years with a different organization before returning, and the adjustment has not been automatic in a defense that looks different from the one he left behind. Kyle Shanahan has changed up his schematics since then, and Raheem Morris is running the defense now.
That made Week 9 worth watching beyond the final score. Buckner still managed two QB pressures, and the 49ers pressured Kirk Cousins a combined 15 times. Bosa added two pressures of his own, a reminder that even while Buckner is relearning the details, the front is already producing.
The friction is in what comes next. Buckner was brought back to help lead, but he is still getting up to speed in a scheme that is not the one he left. That leaves the 49ers with a powerful front and an open question about how quickly a 32-year-old defender can turn a return home into a full-time fit. For readers following the broader picture, the club's defensive depth has been part of the conversation around 49ers Game Today: Nick Bosa Returns as San Francisco Sets Week 9 Active Roster, and Buckner's re-entry only sharpens it.
