Echoing what coach Jim Harbaugh indicated Thursday and keeping to the mantra of the organization, San Francisco 49ers general manager Trent Baalke predictably had this message when speaking to the media Friday: the team's free-agent plan will be to keep its own."Our No. 1 objective is to keep our own guys," Baalke said.The 49ers' top priorities in the coming weeks (free agency starts March 11) are to re-sign receiver Anquan Boldin, safety Donte Whitner, kicker Phil Dawson, and perhaps cornerback Tarell Brown.