In a divided Labour party, Wes Streeting is one of the great dividers. Staffers who have worked for the former Health Secretary speak of the loyalty and admiration he inspires through his intelligence, hard work and compassion. “He’s personable, likeable and connects with people,” says one on the right of the party, “but there’s also that steel and determination within him.” Those on the left see a different side. A former colleague from his day…