I would not draft Sweat until our round 5 pick, if he were still to be on the board. No way I'd risk a round 2 or 3 pick on him. Uncontrolled weight surely has a high correlation with busting. Telling yourself you can change a player, who they are, that is the type of decision making that increases your bust likelihood. You are better off knocking him for that, and choosing another player who has the things that are hard to teach, like love of the game, self discipline, good conduct in society, etc.