CHICAGO—Chicago Cubs manager David Ross and president of baseball operations Jed Hoyer have tested positive for COVID-19. A spokesman for the team said Ross and Hoyer are feeling fine in isolation. Both of them are vaccinated. Ross and Hoyer likely will have to stay away from the team for at least 10 days, though Major League Baseball has made exceptions for individuals cleared by its medical experts, based on not being infectious. Bench coach Andy Green will run the team while Ross is away, but he was ejected by second base umpire Tom Hallion in the sixth inning of Friday’s 6-5 victory over the Pittsburgh Pirates. Green went out to second to try to get the umpires to review Kevin Newman’s slide on a potential double play that turned into a throwing error on Cubs shortstop Sergio Alcántara, bringing home a run. Green spiked his hat after he was thrown …