Where Giants stand in collaborative search for Tony Vitello’s new coaching staff

LAS VEGAS — As Buster Posey settled into a corner of a conference room at The Cosmopolitan on Tuesday afternoon, a large crowd gathered a few feet away for Paul DePodesta, who was named Colorado Rockies president of baseball operations last week after a decade in the NFL. It was a reminder that for all the heavy lifting ahead for Posey and the Giants, there are other organizations with bigger holes to fill.Unlike DePodesta, Posey at least has his manager. Most of the rest is still up in the air, though. At the annual General Managers meetings, Posey said the front office and new manager Tony Vitello are closing in on finalizing contracts with several coaches, but announcements were not imminent Tuesday afternoon. There are some, however, who know they will be back.Assistant hitting coach Oscar Bernard, quality control coach Taira Uematsu and bullpen catcher Eliezer Zambrano all have been informed they’ll be back, Posey said. There will be new leadership atop the hitting and pitching groups, and possibly new base coaches. Matt Williams was told early in the offseason that he wouldn’t return, and the status of first base coach Mark Hallberg is to be...