You're joking right. For a guy who is 230 at high school at d-end is pretty damn good start. He'll have the height to put on weight, but to say he needs a lot of weight is a stretch.
6'7 230 is bigger than any DE on our roster right now.
I'm surprised nobody has said 'turn him into an OT' yet, but I expect it to come.
The kid is only 16 for crying out loud!