From Terrebonne High School in Louisiana Williams just turned 17 and is currently committed to play baseball at LSU. But it's likely he'll sign and start his pro career. Some scouts have given Williams their highest grade for power potential and he won several Home Run Derbies on last summer's showcase circuit.
He played shortstop in high school but projects to right field at best and may even have to go to first base with average running and arm tools. There are some questions about his current swing mechanics and he still needs lots of coaching to extract the talent within him. But he has plenty of time to work on things and would probably be better served getting immediate access to professional coaching.
The sky's the limit for Williams and he fits into an organizational need for corner power. But he's a long way off and is a classic high risk/high reward choice. But he has some of the necessary tools to be a big star if he can put it all together.