I'm lost with this line of thinking. So everyone has potential. But goalies will be graded differently b/c their potential is inconsistent and their stock is only established once they're a solid NHL-level goaltender. At that point, aren't they NHL goaltenders and no longer prospects?
You go with Tracey, who has no NHL experience and rate him over Jones. There doesn't exist a sense of consistency with respect to prospects. I'll respect that you have two different standards for prospects, but I disagree with it b/c prospects are all about potential and they can change their potentiality year after year. Isn't that why we do prospect rankings every off-season?
If you want to understand my logic, here's how I work. I look at prospects with one simple gauge in mind, honestly. That being, how much they can be reasonably expected to contribute to future success of the team. That can sort of simplistically be broken down to two constituent parts: how big of a contributor I expect a prospect to be, and how likely I think it is for a prospect to actually contribute.
In my ranking, Tracey is solidly above Jones, despite the fact that the latter has had decently successful NHL time, because I simply value his projected offensive ability above Jones' skillset regardless of NHL-readiness. And since there's little yet to suggest that he's not going to pan out, his projected capability outranks Jones' readiness as far as I'm concerned. Should that be put to question by next season or altogether proven wrong, trust me, his stock will take a massive plummet in my eyes. But so far so good, hence he's ahead.
Goalies, though, are a different kind of animal. Their stock is permanently lower in my eyes because of the second prospect contribution attribute. We just don't know if they'll develop well or not, and their development varies a lot more on a year-to-year basis than it does for skaters in my experience. Could be wrong, of course, I'm just a hobbyist and I don't really pretend to be an expert, so if someone marches in and shoves data in my face that proves me wrong I can reassess. But as it stands, I don't think it's as reasonable to assume that a goalie prospect that looks good one year stays on that course until he proves that he really does. Conversely, skater prospects get a lot more leeway because their development trajectories are more stable.