Kyle Shanahan has named Brandon Allen as the San Francisco 49ers' backup quarterback over Joshua Dobbs, despite Dobbs' superior preseason performance. Dobbs outperformed Allen in passing yards, completion percentage, and rushing, but Allen's familiarity with Shanahan's system gave him the edge. Shanahan acknowledged the decision was difficult and praised both quarterbacks' efforts. Allen has been with the 49ers longer and was seen as a safer choice due to his experience with the team's playbook. Dobbs, who signed with the 49ers in the offseason, will serve as the emergency No. 3 quarterback. The decision has sparked some debate, with many feeling Dobbs' on-field performance warranted the backup role.