It has always been easy to underestimate Mark Davis. After all, he is known for his wacky bowl cut and silver-and-black suits and for managing the Raiders from the bar at a P.F. Chang's. Since his Hall of Fame father, Al, died six years ago, Davis has been an afterthought in league circles, easy to malign and hard to take seriously. ... Adelson considered the Raiders' move a chance to help him shift a windfall of public money away from a competitor's convention center renovation -- and a chance to enhance his legacy by delivering an NFL franchise to his home city, sweetened by a stake in a gleaming, state-of-the-art $1.9 billion domed stadium and, perhaps, a piece of the team. ... What no one could see then is that, after making good on his word by delivering an American-record $750 million in public funds for the stadium and pledging $650 million of his own money, Adelson would end up furious a year later, feeling that Mark Davis -- the goofy Mark Davis who "surprises people if he can roll out of bed and put on his pants," as a team owner says -- had completely and utterly fleeced him.