Indiana had given Patterson special admission to the university as part of the Faculty Sponsorship Program, which assists students who don't meet all of the university's general admission requirements. The student is "sponsored" or mentored by a member of the faculty with the hope that they'll ultimately be granted full eligibility.
Patterson is fine according to the NCAA minimums, but Indiana told him that he did not meet their academic requirements. Also of note, Patterson's departure solved Tom Crean's issue of over-signing and dropped the Hoosiers down to the maximum limit of 13 scholarships.
Xavier was one of many high-major programs that inquired about the 6-3 wing. Patterson could have added depth at the two and three spots where Xavier is somewhat thin heading into this year. As a senior, Patterson averaged 18.5 points, 5.7 rebounds and 3.8 assists. He was known for his athleticism, toughness and defensive prowess with a 6-10 wingspan.
Patterson now becomes a member of the 2013 recruiting class, and Xavier will keep an eye on him. Indiana, however, is not recruiting him. Illinois, Marquette, Kansas State, Virginia Tech, Cincinnati and Providence are the schools currently on his list.