If you think you son's verbal is set in stone because a college coach says it is you are being naive. What would you expect him to say? Grades, injuries, playing progression, off field activities etc. will all come into play when the coach makes the final decision of who he chooses for his team. It's his career on the line. All you have is a handshake and an imaginary contract. This rule change just gave every coach that has verbaled a 2020 the opportunity to walk away if your kid if he looks at him the wrong way without looking like the bad guy.