...just for discussions sake... 
If the Standard's requirement is:
"...determine the necessary competency for personnel performing work affecting conformity to product requirements...",
Then can competency be simply stated in terms of "conformity to product requirements"?
(especially in the case of positions with no educational or experience pre-hiring prerequisites)
For example, for assembly personnel, why require:
In order to build X personnel must:
1) be able to read and follow assembly instructions
2) be able to operate equipment Z
3) know the difference between materials A & B
...(any other details required for assembly)...
When it'd be so much simpler to just require:
Required competency: Able to build device X, that passes all final inspection criteria.
Evidence: During training session Y, personnel builds 5 units which pass all inspection criteria.

If the Standard's requirement is:
"...determine the necessary competency for personnel performing work affecting conformity to product requirements...",
Then can competency be simply stated in terms of "conformity to product requirements"?
(especially in the case of positions with no educational or experience pre-hiring prerequisites)
For example, for assembly personnel, why require:
In order to build X personnel must:
1) be able to read and follow assembly instructions
2) be able to operate equipment Z
3) know the difference between materials A & B
...(any other details required for assembly)...
When it'd be so much simpler to just require:
Required competency: Able to build device X, that passes all final inspection criteria.
Evidence: During training session Y, personnel builds 5 units which pass all inspection criteria.

