I have to respectfully disagree..........the issue is the vulnerability assessment regardless of organic or traditional. An entire range of products was omitted from the assessment.
In order to verify that your organic product actually is organic, and not fraudulent, you need to include them in your assessment.
Now, correct me if i'm wrong (i've managed organic) but there is very little or no overlap between allowable traditional pesticides and the ones allowed under the organic certification. You could test for the non-permissible pesticides only (a really good lab can help you sort this out) OR you can simply rely on the paperwork trail etc that you've already got from your organic vendors (you've done that part well!) The other thing you can do to beef up your organic requirements is have the vendors sign a legally binding attestation that product coming to you as organic, is only organic-----then spot check
And also, ask for the list of pesticides they ARE using......send random samples to a lab to test for those and the traditional ones. Organic can get quite tricky and you've got to have a good understanding of what the farmers can and cannot do whilst following USDA organic standards
So re-do the assessment and include the organic products and how you CURRENTLY mitigate fraud............this issue isn't your organic verification, it's your omission of an entire product line.