I'm not too worried about IB, don't think he had any chance of going further and it may be time for him to find his True North in life; which may not include basketball. Every sport requires some kind of minimal "thing", usually the ability to run, be agile, and respond/react to others movements. At a certain point, if one's body can't keep up with a sports requirement, they're best to move on and find another outlet they love.