It is All Star Weekend in Chicago, the entire NBA has come here to shiver and to network and to watch some profoundly bad basketball exhibitions, and the Chicago Bulls don’t exist. They do not have an All Star. Zach LaVine will participate in the embarrassing also-ran three point competition only because, presumably, they couldn’t get Jud Buehcler into the Celebrity Game. It’s a sad state of affairs for another wretched season that began with promises to contend in the putrid East and has come to the break in a familiar catastrophe of injuries, thinly-veiled trade demands, and foam-mouthed Jim Boylen reveries.