49ers QB Mac Jones stepping in for Purdy: "Mac's been awesome. Our team believes in him."

The San Francisco 49ers are set to turn to veteran quarterback Mac Jones as they face the New Orleans Saints, marking a significant shift in their offensive strategy due to injuries.

Why it matters: With Brock Purdy sidelined by a left shoulder and toe injuries, the 49ers must adapt quickly to maintain their competitive edge.

• Purdy's absence is compounded by tight end George Kittle being on injured reserve and other key players like Jauan Jennings and Trent Williams listed as questionable for the game.

What’s new: Mac Jones will make his first start as a 49er, stepping in for Purdy after joining the team on a two-year, $7 million deal.

• Last season, Jones struggled with the Jaguars, throwing eight touchdowns against eight interceptions and finishing with a QBR of just 36.6.

What to watch: The effectiveness of Jones in the 49ers’ fast-paced, West Coast offense will be crucial.

• Kyle Shanahan praised Jones, stating, "Mac's been awesome. Our team really believes in him," indicating that the coaching staff has confidence in his ability to adapt.

Yes, but: While Jones brings experience as a former starter, he faces challenges without a fully healthy supporting cast.

• The 49ers' offensive line needs to protect him effectively, especially with Trent Williams’ knee injury potentially limiting his performance.

Between the lines: The 49ers’ reliance on Jones places additional pressure on their ground game and defense to support the transition.

• Adrian Martinez is expected to back up Jones, although he has yet to play an NFL game, highlighting the lack of depth at the quarterback position.

The bottom line: How well Jones can execute under pressure will determine the direction of the 49ers’ season as they aim to stay competitive in a tightly contested division.

• John Lynch noted, "Brock is doing well... But that's where we're at, on a week-to-week deal," suggesting that the 49ers remain hopeful for Purdy's return but must focus on immediate challenges.

As the 49ers prepare to take on the Saints, all eyes will be on how Jones adapts to his new surroundings and what impact his performance will have on the team's playoff aspirations.