First, from the man himself:
Souley Boum is a huge get for Sean Miller and Xavier. Boum played for UTEP last season, the final of his third there after starting his career at San Francisco. What he did, simply, was score the ball. His line of 19.8/4.5/2.9 included games of 32 twice and a 20/12/10 game against Western Illinois in the CIT. Boum made 37.4% of his threes and 84.3% of his free throws. He is, as his Twitter handle @BucketsForSale_ would suggest, more than willing to put it up.
Xavier had a guard issue with Paul Scruggs, Nate Johnson, and Dwon Odom all gone.