SAN FRANCISCO -- One of the best games by a tight end in NFL history is proof the San Francisco 49ers may need to go get themselves another receiving option.Just think how good quarterback Colin Kaepernick could look with a full complement of weapons. Vernon Davis' 180 receiving yards in San Francisco's 32-20 win over the Arizona Cardinals on Sunday was tied for the third-most yards by a tight end in the NFL in the past 20 years. It was another indication that there is nothing wrong with Kaepernick, who had thrown for fewer than 180 yards in each of the previous four weeks after passing for a career-high 412 yards in Week 1 against Green Bay.