If you do this, identify beforehand what you think is non-negotiable. Because it won't be a technical discussion, it will be a negotiation and you're liable to

If you do this, identify beforehand what you think is non-negotiable. Because it won't be a technical discussion, it will be a negotiation and you're liable to be committed at the end of it. Of course, once you're holding certain things as non-negotiable... you're saying no.