The Seattle Seahawks and San Francisco 49ers have shown up as possible trade destinations for New York Jets cornerback Darrelle Revis.I just don't see it happening, for simple reasons.The 49ers have not made big-ticket acquisitions in free agency or via trade since the team was rebuilding its roster five-plus years ago. They prefer to reward their own players. Why would the 49ers suddenly depart from this philosophy after reaching the Super Bowl?