It’s easy to get excited about the prospect of a rookie joining a team. It’s even easier when that rookie is a point guard who played his freshman season under John Calipari. And while no one has compared Marquis Teague to Derrick Rose, head coach Tom Thibodeau reiterated that any expectations of the 19-year-old Teague must be tempered. “You have to learn how to be a pro first, then you have to practice well, then you have to learn the league, then you have to learn your teammates,” Thibodeau said of the Bulls’ lone rookie. “And then once you can learn to do those things, and you know how to do your job, you may get an opportunity to play. But it’s a big step going from college to the pros, so everything is based on performance and we’ll go from there.” Even with Rose sidelined for at least the first half of the NBA season, it may be difficult for Teague to crack the rotation. Gone are C.J. Watson and John Lucas, but they have been replaced by free agent acquisitions in Kirk Hinrich and Nate Robinson.