Why didn't the Chargers trade with the Giants at 4? If the Lions drafted Herbert then the Chargers could trade for Stafford. Call the Lions bluff and make an offer for Stafford. No one is going to trade with Arizona this year because they're worried the Cardinals are going to draft a QB. Being able to trade back is dependent on who is drafting behind you and the value of the player in the draft.
This isn't how this works. Teams are not as dumb as you think they are. The Chargers only incentive to trade with the Lions is to get ahead of Miami if they valued Tua more than Herbert. The Chargers weren't going to believe that the Lions will draft a QB and move on from Stafford but if you trade for our pick we'll completely change the direction of the franchise and our QB. I'm not even sure what Quinn did to make this so impossible of trading back. It couldn't have been any more affirming than what Campbell said of Goff.
The logic is just nonsense. Hey Miami, we're going to draft a franchise QB because we are moving on from Stafford, however, if you trade with us we'll completely change that plan and keep Stafford and let you draft the franchise QB.
Arizona is drafting 3rd this year, same as the Lions in 2019, and no one and I mean no one is going to trade with Arizona because they think they may draft a QB and move on from Kyler Murray. They are only trading with Arizona to get ahead of the Colts. That's how this works.
That's not how it works. If anything, it would make teams want to trade with Seattle to get ahead of Detroit. No one is going to believe that yeah we are serious about drafting a QB, but if you trade with us, we will completely change our plans.