Ime's issues are confidence, like many players on the Spurs who get lost on the bench. However, the improved play of Bonner has allowed him to stay on the court and we're doing less of the small ball game. Ime used to have a niche as the small ball 4 and for the last few weeks there hasn't been a need for that.
Also, Ime can't hit the side of a barn these days, so that isn't going to help.
On a side note, I've noticed some good chemistry between Ime and Oberto with a lot of give and go's, possibly because all the end-of-the-benchers put in lots of practice together.