I think 90% of this discussion has come down to a debate about floor and ceiling of each player considered at #5, and the risks and likelihood associated with them meeting the ceiling. Maybe a relevant discussion would be to get a list of players considered at #5 and a rough framework of how that player projects. For the sake of this, I don't want to get into the business of predicting injuries. It is certainly an implied risk with pitchers more than position players. Here is a quick overview of Aiken, based on about 10 minutes of research: Best asset - 6'4 lefty. His stuff right now is 65 FB, 60 curve, 60 change, 60 control. Ceiling - Front line starter, tall lefty with 2-3 plus pitches and a mid 90's fastball Floor - If the scout ratings above are correct (where he is right now), #2 starter, very good #3 starter with no improvement to these. Key Risk - He is a high school pitcher List of players considered: Aiken, Rodon, Freeland, Jackson, Gordon, Touki, Nola, and Kolek. I don't have time to look at them all