A day after the Warriors announced that JaVale McGee had earned the team's 15th and final roster spot, Steve Kerr offered insight into the decision. At 7-foot, 270 pounds with a 7-6½-inch wingspan and a 31½-inch vertical leap, McGee is one of the NBA's supreme athletes. During the 2011 Slam Dunk Contest, as a gawky 23-year-old for the Wizards, he dunked two balls into side-by-side hoops before slamming three balls into the same basket. [...] after his penchant for bloopers and a slow-healing leg injury limited him to only 62 games over three seasons, he received no guaranteed offers this past summer Golden State brought him to training camp because, after losing Andrew Bogut and Festus Ezeli in the offseason, it had no proven shot blockers on its roster. In the Warriors' past two games, he has totaled 20 points, on 10-of-14 shooting, six rebounds, two assists and two blocks in 21 minutes. The floor is so spaced for him, when he rolls to the rim, there's not a lot of guys who are more athletic than him in the league, so he'll get a lot of highlight-reel dunks. After shootaround Friday, Thompson had a vehement response when asked about a recent ESPN article that...