The Chicago Bulls never have come back from a 3-1 deficit to win a best-of-seven playoff series, so the odds of them taking the next three games from the Milwaukee Bucks already were slim before Zach LaVine entered health and safety protocols for COVID-19 on Tuesday. After a glint of optimism emerged following the Bulls’ Game 2 win in Milwaukee, we now return to our regularly scheduled pessimism already in progress. No one believed the Bulls had a chance before the series began, and after back-to-back blowout losses at home and with LaVine’s uncertain health status, no one believes it now. But…