A daily review of the hot topics coming out of the San Francisco 49ers training camp:The 49ers and Baltimore Ravens ended their mini-training camp (the two teams played a preseason game Thursday and then held joint practices Saturday-through Monday at the Ravens' facility) with a group huddle.It was a fitting end to a peaceful, productive camp which was highlighted by the leadership of brothers Jim and John Harbaugh, the head coaches of the 49ers and Ravens, respectively.