Originally Posted by blandman
A grade of B or B- is subjective, as it's only one person's opinion (Sickels I'm assuming), and isn't relevant to ceiling, but rather a combination of ceiling and readiness. Sickels is notorious for rating guys higher that are ready (with a guy like Keith Law on the other end of the spectrum, valuing ceiling more). In general, though, you don't see guys of grade B becoming stars very often, and most guys would consider a B- startering pitcher prospect a 5/6 guy.
Sickels didn't say Santiago was a 3/4, he outlined a situation where he could become one. He probably also banked on him being able to control some of his pitches.
Of course it's subjective, scouting reports, which you were calling for, are by definition are subjective...man you're hilarious.