Some 15,200 came out to the Target Center last week to see the last-place Minnesota Timberwolves annual “Summer Showcase” scrimmage. (Admission is free.) The NBA’s top draft pick, Karl Anthony Towns, put on a 24-point, 15-rebound show in 27 minutes, the fans went crazy, and they also got to applaud reigning rookie-of-the-year Andrew Wiggins, one of the team’s two other overall No. 1 picks, both secured in the Kevin Love trade. (Nobody was supposed to notice, I guess, that Anthony Bennett, who may yet become the most disappointing No. 1 pick in NBA history, wasn’t there and is reportedly trade bait.) In other words, the ‘Wolves aren’t out of the basement yet. Fast forward two days later to Vegas: 12,000 people at the Thomas & Mack Center (buying $25 tickets) see the “match-up” between Towns and the LA Lakers’ second pick in the draft, D’Angelo Russell.  Neither was overwhelming, but they didn’t embarrass themselves, either. And something must be working.  The owners are sitting in the front row grinning, the players and coaches, all making oodles, are walking around happy as larks, the front-office people are smiling because when the players are making money they’re also well compensated.  Watching the Las Vegas rookie review in Vegas, I’ve never seen so many happy faces watching so sparse a product. ***