The 49ers made one of the best offseason moves by .While Garoppolo became the second-highest-paid backup QB in the NFL, it kept him on the roster, which was much needed when Trey Lance went down with a . Even with the incentives, Garoppolo's deal made him a bargain starter.If San Francisco felt it was paying a discount for a starting quarterback with Garoppolo, it must feel like Purdy is on...