On Oracle Park’s 25th birthday, SF Giants ring in new era in multiple ways

SAN FRANCISCO — It’s officially the post-Mays, post-A’s era at the ballpark by the Bay.

The Giants couldn’t have asked for better weather or better circumstances to ring in Oracle Park’s 25th anniversary, and it was a big one.

“There’s definitely a lot of changes,” outfielder Mike Yastrzmeski, the team’s longest-tenured player, said before taking the field for his seventh Opening Day on the shores of McCovey Cove.

It begins with the man in charge, Buster Posey, whose reign...