The Herald reports that Boston Globe chief executive Linda Pizzuti Henry is backing out as an investor in Boston Unity Soccer Partners, the group that wants a women’s soccer team to play at a rebuilt White Stadium in Franklin Park. … This changes the political dynamics of the White Stadium controversy. How much it changes it, I don’t know. But the women’s soccer team partnership appears to have lost a key ally in its quest to have BOS Nation play at a new White Stadium. And Mayor Wu has lost a key ally just as the battle over the ridiculously expensive White Stadium project heats up in the Boston mayoral race.  …