We have solicited for an anticipated multiple award, hybrid IDIQ for approximately $500 million. This acquisition was set aside for small business. The primes have proposed multiple subcontractors/sub-offerors. After establishing the competitive range, I sent written discussion questions regarding the offerors weaknesses.

My plan after evaluation of the written responses, is to conduct oral discussions on those areas still not resolved.

Considering the complexity of this procurement, the number of key players, and the small business set aside, I wanted to employ the best method to determine meeting of the minds.

Is there anything that precludes me from using this type of discussion method?

After establishing the competitive range, I sent written discussion questions regarding the offerors weaknesses.

My plan after evaluation of the written responses, is to conduct oral discussions on those areas still not resolved...

Is there anything that precludes me from using this type of discussion method?

No. Discussions are open until you close them with a request for final offers. You certainly may combine oral with written discussions. As you indicated, a useful and important objective of discussions is to get to a meeting of the minds.