Buster Posey’s silence speaks volumes about his Giants leadership — and it’s not good

As a player, fans got to know Buster Posey as a tremendous leader.

In the clubhouse.

Of a pitching staff.

As the most important player on three World Series winners.

They must be wondering where that guy was as Posey, now the team’s top baseball executive, clammed up during a heated 15-minute news conference inside...