The point is, you find talent wherever you can get it. Whether its California or New Jersey. Kids in California and Florida can slip through the cracks as well.
We've actually done well outside the top 100 picks or so. Derek Norris was a 4th rounder. Tom Milone 10th. Michael Taylor 7th. John Lannan 11th. Brad Pea**** 41st. Robbie Ray 12th(fell for signability, I know).
I wouldnt consider taking Trout, in the first round, really slipping through the cracks. He's certainly risen quicker than anyone imagined, but people knew the talent, and he was discussed before the draft as an elite talent. He just happened to mature and develop quickly. Everyone develops at different rates. some don't develop at all.