Working in R&D contracting, we sometimes encounter a situation where a subcontractor does not want to submit their business proposal through the prime, for proprietary reasons. Are we obligated to accommodate this, or are we able to require the subcontractor to submit their business proposal through the prime? We are developing a system to receive proposals electronically (no more boxes of paper copies all over people's offices) and I am trying to determine if this is an option the subcontractor is entitled to (and therefore if we have to build the system to accommodate this option). I can't find an example of when this has come up. Thank you!