Major League was not inspired by the witch, but I can't deny its parallels.
https://www.imdb.com/title/tt0097815/trivia/?ref_=tt_ov_ql_3
From IMDB:
The Rachel Phelps character and her plan to move the Indians was inspired by real-life Minnesota Twins owner Calvin Griffith. In the 1970s, during the planning stages of constructing the Metrodome stadium, Griffith had negotiated for an escape clause in the team's lease which said that if the Twins' home attendance was under 1.4 million per season for three consecutive years, the team could be released from its contract and leave Minnesota. Like the Phelps character, Griffith let quality players depart via free agency and used cheap, inexperienced rookies and has-beens. The Twins lost 102 games in their first year in the Metrodome in 1982, then 92 games the year afterward, with attendance under 900,000 in each of those seasons. A group of investors from Tampa bought 42 percent of the team, and the Twins were on the verge of moving to Florida. To many fans, it appeared that Griffith had weaseled the escape clause into the contract and set up the roster so he could put it into practice. The situation was avoided when Griffith sold the Twins to banker Carl Pohlad. The Tampa group sold its minority stock to Pohlad, and the Twins remained in Minneapolis.