By Bryna Jean-Marie She started working with the basketball icon in 2004, but it would take years for her to finally accept the role as president of his business—and she has no regrets about waiting. Sports Illustrated and Empower Onyx are putting the spotlight on the diverse journeys of Black women across sports—from the veteran athletes, to up-and-coming stars, coaches, executives and more—in the series, Elle-evate: 100 Influential Black Women in Sports. When it comes to being the president of Magic Johnson Enterprises (MJE), it’s a win for not just Christina Francis, but for the basketball …