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RogerMarisCollector61
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- Jan 26, 2010
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Very good read. All the hype on this kid, and other "hot" prospects always gives me pause. Home runs garner news but is there any Sabr data that prospect collectors use to help determine of someone is the real deal? I mean it seems crazy that this guy can have a top 50 list already.
Real Deal meaning you could make money? These days, cards come out so hot out of the gate that the risk outweighs the reward in most cases. BUT...
If it's just having a $30 card become a $50 card before call-up, then it is pretty much HRs and Ks. Prospectors sell to prospectors, and a lot of prospectors are bad at it, and buy at peak, pre-callup prices. These people like HR and K.
If you are interested in seeing which players might become quality big league regulars, for batters, I look at AVG, OBP, Walk%, K%, BABIP and ISO. BABIP and ISO tend to tell you which player is simply riding an ungodly hot streak, and who is performing at a reasonable rate. Low walk-rate=high variance in BA/Power because so much of their success is based on hitting the ball to the right place (it magnifies slumps).
For pitchers, BABIP-against, K-rate, and Strand Rate. If he's stranding 80%plus of people he walks/gives up hits to, he's going to have a mean case of mean reversion.
the funny thing about numbers, though, is they never predict when a reversion is going to happen. I mean, you could flip a coin 100,000 heads in a row, and it doesn't change the odds of the next flip.
Puig could have a career .400 BABIP. who knows.
This is a great analysis, it makes tons of sense. To take a slightly different point of view but still using your analogy here, its often just best to wait after a bunch of coin flips happen before making a purchase instead of buying immediately - after all, almost everything will always be available.