After competing for rotation spot in spring, Sean Newcomb has been invaluable in White Sox' bullpen

HOUSTON — As White Sox manager Will Venable worked to protect a one-run lead over the Twins for four innings Saturday — with ace reliever Grant Taylor unavailable after working a career-high 2‰ frames the day before — there were no easy answers. Unless the answer was a lot of Sean Newcomb. “I was talking with [general manager Chris Getz about it — about how valuable these guys are,” Venable said. “[Newcomb] leads the way. That prototype of pitcher, where he’s really good — he takes the ball all…