Because it's been said/hinted at by the only two guys attempting to cover OU MBB; Lusk and Bob P.
Lusk:
"Based on conversations with multiple sources, it appears Elvis holds the Sooners in high regard as well. Oklahoma views Elvis as a combo guard and envisions him starting at the two alongside Pedulla"
Bob P has stated that if OU lands Garrison, Pedulla, Elvis, and Scott, there's no more money to add another "big-time" (or decent) kid and he even threw out a Maks talking point as to what kind of kid OU would maybe land with their last open scholarship (in other words, deep depth type/waste of scholarship).
Both Lusk and/or Bob are talking to OU staffers. This is coming from inside the offices.