The San Francisco 49ers have officially announced several significant changes to their coaching staff as they prepare for the new season. Klay Kubiak has been promoted to offensive coordinator, taking over from Brian Griese, who has been released from his role as the quarterbacks coach. Mick Lombardi will step in as the new QBs coach. Alongside these changes, the team has brought on new personnel including the son of John Lynch to further bolster their coaching staff. These moves come amidst an overall overhaul by head coach Kyle Shanahan as the 49ers look to improve their performance after a disappointing season.