novice110 a fair question but I don't think anyone on these forums would disagree that if it a tight spot then the experience and authority of the PIC would kick in and after stating:
- these are the options I see
- this appears the best option to me
- have I missed anything, any better ideas
the operation would be continued on that common understanding.
Exactly how/terminology used may vary with individuals but something along those lines to achieve the common understanding of the "big picture'.
Some people forget that CRM was never intended to usurp the authority of the PIC but to encourage decisions based on all valid and available data, there always has to be some latent gradient on the flightdeck but in modern ops the times that gradient has to become overt are fortunately few and far between.
Cheers