The Orioles have a record of 8-3 since trading Mancini, outscoring their opponents 57-42. Mancini was arguably as much, if not more, a clubhouse leader, great teammate, and fan favorite to the Orioles and Vazquez was to the Sox. Also, Orioles management more or less stated that they didn't think the team had what it takes to make it this year. Yet, the Orioles players have played as hard as and as well as just about any other team since they lost their beloved leader. It's all about mindset.
IMO, the Sox are lacking strong leadership from their veteran players, namely Bogaerts and JD. Obviously, I'm not in the clubhouse, but I'm just not sensing it. Duran especially could use some veteran leadership and support, but also Dalbec and even Devers.