"We're going to see. I thought early on, he's a pretty good team defender. I think he still can improve with his individual defense and we'll see where he is once he gets going a little bit," Thibodeau said. "Right now, we're pretty much set with our rotation. He has to learn, get ready and you never know. Over the course of the season, you need everybody."
The Bulls are already sound at the shooting guard and wing spots with Jimmy Butler and Marco Belinelli coming off the bench for Richard Hamilton and Luol Deng. But Cook, the 14th player on the Chicago roster, adds a dangerous shooter to the equation.
In his fifth season out of Ohio State and still just 25 years old, Cook brings his career averages of 6.9 points and 2.2 rebounds to the Bulls after he was waived by the Houston Rockets last week. He is a career 36.5 percent shooter from three-point range.
This season, Cook was sparingly used in Houston and posted averages of 3.4 points and 1.1 rebounds per game in 16 games played.
Cook has a year left on his contract at $3.9 million.