Terrell Furman said a fully-healthy Christian McCaffrey is a three-to-four game swing for San Francisco. Pairing the league’s easiest strength-of-schedule with McCaffrey’s all-around usage should push the 49ers to "at least" double-digit wins despite massive roster turnover and questions at several positions. Furman argued that even if Brock Purdy remains more system manager than difference-maker, McCaffrey’s efficiency as both runner (5.4 YPC last year) and receiver plus the favorable opponent slate raises the floor enough to feel comfortable betting the season win total Over, while acknowledging the Under risk if McCaffrey misses time.