Even with a healthy Derrick Rose, the Bulls are a team lacking in offensive potency and three-point weapons. Robinson can score in bunches and also spread the floor with his long-range jump shot.
Therefore, the Bulls can use what he brings to the table. He could even play the shooting guard spot alongside Rose in 2013-14.
However, there are numerous threats that largely indicate why Robinson won't be back in the Windy City next season.
Barring an unpredictable sequence of events, Robinson will likely be wearing another uniform in the near future, and one (or more) of these reasons will almost surely be the reason why.