Tom Thibodeau said he’s not done trying to make the Timberwolves better for the upcoming season. But fans frustrated the Wolves didn’t dive deeply into the free agency pool in the past week need to be patient. Thibodeau, the Timberwolves president of basketball operations and head coach, talked with local media via telephone Saturday afternoon from Las Vegas, where he watched first-round draft pick Kris Dunn make an impressive summer league debut Friday night. “We want to take everything step by step,” Thibodeau said. “So the first part was the draft. Then, of course, the free agency. We have a little room, and there will be trade potential. We have cap space. I think we have assets that are attractive to other people. We’re pleased. We feel we improved our depth.”