Whenever Jimmy Butler used to watch the Bulls play while he was at Marquette, Luol Deng's minutes always stood out. "When you play that much it has to mean something," Butler said. "You're doing everything the team needs." Once Butler arrived as the Bulls' first-round pick, he learned why Deng is so indispensable. "He's always in here early, and he doesn't have to be. He's a vet," Butler said. "But he's constantly taking care of his body, studying the game. He always wants to get better. That's the one thing that rubs off on me the most."