We are taking a look at the top 60 players in the San Francisco 49ers' program and will rank them from 1-60. We are going to take a look in a 12-part series, moving upward. The ranking considerations are based on 2013 production, future projections, age, and contract status:16. Safety Donte Whitner: Whitner is a solid player. He had a good season in coverage and he is an enforcer. He is a free agent and he could command a big deal elsewhere. I know the 49ers have other long-term needs, but keeping Whitner is vital.