Shane - depends how you define raw talent and how it all fits in.
I could define talent in a number of different areas. E.g. good kicking, good handballing, strength, ability to read the play, strong marking, speed, endurance, contested ball winning, ability to spoil (Zac) etc.
Coming into a club, a youngster may excel in 2 or 3 of these areas. To be a consistent week in / week out performer he needs to excel in say 5. To be elite, maybe 8.
So I go back to the original point, the recruiter needs to assess how well a kid can develop. What could be, not what is.
I reckon Deboer is a great example. He is a guy with clear deficiencies when he started, but clearly with a work ethic where he has been able to take other parts of his game up to being a solid contributor.