What is the takeaway from David Blatt’s shocking dismissal as coach of the Cleveland Cavaliers? A few things, all of them related to the Cavs being weak-minded. (Hey, you make a move like that, and you open a window into dysfunction junction.) 1. The East is now a lot more wide open than people might have realized. Exhibit A was the Cavs’ mail-it-in effort in Saturday night’s home loss to the Chicago Bulls, with new coach Tyronn Lue explaining afterward that his
