Kansas basketball coach Bill Self says he is “optimistic” that freshman forward Billy Preston will be able to play in games for KU during the upcoming Big 12 season. “The thing about it, from an optimism standpoint, we don’t know how other people will view what we have done,” Self said, ostensibly referring to the NCAA’s opinion of KU’s findings regarding the financial picture surrounding a vehicle the 6-foot-10 Preston has been driving on campus this school year. Those findings have not yet been delivered to the NCAA, Self stated.