I would not trade Rosen until the Cardinals are sure they have their franchise quarterback so under the originally proposed scenario the Cardinals would still have Rosen and Murray to show for 2 firsts, a third, and a fifth.
So both would have to bust to create a dire scenario. More likely, one of those two quarterbacks would succeed.
This is a scenario that would be disastrous and is highly, highly unlikely.
I'm not in the game of dismissing arguments or insulting, so I'll respect your thoughts and what you'd do if you were GM, but there is no scenario where this works out. Not mentally for the players, not in terms of Rosen demanding a trade, not in terms of getting players enough snaps. It's not happening.
Even if your scenario came true, two quarterbacks won't be on the field at the same time. It's not like grabbing another OLB or CB.
I still can’t get over ppl complaining about 3rd and 5th rd picks after Jonathon Cooper, DJ Humphries and Robert Nkemdiche.
When 3rd round picks turn into Tyrann Mathieu, David Johnson, and John Brown, or 5ths that turn into serviceable players that build the belly of a team with an awful roster, it's worth mentioning.
