Within a few hours Tuesday at the Superdome, the Ravens and San Francisco 49ers both posed for their Super Bowl team pictures. It was impossible not to notice the differing attitudes and atmosphere that prevailed during their shoots. While the 49ers were setting up, their head coach, Jim Harbaugh, took complete control of the situation. His voice echoed through the dome as he waved his arms, told players where to line up and jumped into the picture at the last minute. His players did as ordered, somewhat soberly. A nice shot surely resulted, but the NFC champs were all business.