SAN FRANCISCO – The Warriors, on Sunday, walked into Chase Center hoping to extend an encouraging segment of the season and encountered their kryptonite.They ran into Atlanta, whose roster is built to expose and exploit their most obvious vulnerabilities, and were overrun in a 124-111 loss that served as a harsh reminder of the Warriors’ shortcomings – literally – while sounding yet another alarm for their front office.The roster is profoundly defective. As good as the Warriors have been of late, rediscovering offense and winning eight of their previous 11 games, their margin for error remains thinner than dollar-store tissue.The Warriors are short; the Hawks are lengthy. The Warriors are light on elite athleticism; the Hawks could assemble a very good 400-meter relay squad. The Hawks showcased active, disruptive defenders and had enough shooters to take full advantage of the havoc they created against Golden State.Kryptonite.“They got a lot of long, lanky dudes, especially with their guard play,” De’Anthony Melton said.“We struggled to get paint touches tonight,” Stephen Curry said. “The ball was kind of just swinging...