Bill Self: "He has some personal issues that must be addressed. Nobody should read anything more into it than he has personal issues that must be addressed. His status with the team will be addressed if and ever if those personal issues are addressed." Giles has not commented at this point.
Giles was, at most, the backup center at this point and if he was behind Darnell Jackson in the rotation nobody would be the least surprised. Barring an injury to one of the remaining players, this should simplify Self's rotation and provide more minutes in the frontcourt for Wright and Arthur rather than trying to create some minutes for them out on the wing.