SB Nation's Minor League Ball has gone back and did a review of their preseason top 50 rankings.
Here's Tim Melville. I think their writeup is accurate: Passed up by other good talent.
44) Tim Melville, RHP, Royals: 4.97 ERA, 90/54 K/BB in 112 innings in High-A Carolina League, 101 hits. Not a good season, still interesting but passed by other pitchers in deep KC system.
Passed up, passed over...whatever. Melville is rarely discussed anymore. I can't say that I know a whole lot about him.