Yeah, don't get me wrong, there is nothing the matter with the uncertainty inherent in any of these rankings (prospects or established major leaguers). You're calling it subjectivity, but really it's no different than the descriptive and predictive analytics that any business has to include in their planning, in the face of uncertainty. Baseball front offices used to be behind in these areas but probably have essentially caught up by now. I think I'm just saying that a ranked list makes the most sense when a metric has been decided on, no matter whether the way you carry it out involves a range of forecasts rather than (unattainable) certainty. When it's a blend of too many things, though, ranking stops making sense to me. It would be more like tiers - "prospects likely to make big contributions or even be stars", "prospects who have somewhat of a chance to make big contributions or even be stars", "veterans who could be the key piece in a big trade", etc etc.