Matt Williamson of Scouts Inc. is here to discuss a potential Alex Smith trade and its likely ramifications less than two weeks before the March 12 start to free agency.We begin with a look at whether there's any realistic way for the San Francisco 49ers to keep Smith for another season. They would of course like other teams to think there's no urgency to make a deal.Sando: The 49ers were one of the few teams last season that realistically could have contended for the Super Bowl with either of its top two quarterbacks.