Athletic 2 guards who can't shoot are a dime a dozen and don't have a place in the NBA. If he wants an NBA career he'll come back and polish his game, or he can go play summer league ball then hit the G League or whatever country Briscoe is playing in.
The NBA wants bigs who can guard multiple positions and hit the three. Guards who have weak handles, bricklayers, and low IQ are not going to make it in today's NBA. His athleticism isn't carrying him thru NCAA let alone the NBA. It's in his best interest to return for at least one and best two years.