I didn't say it actually set the market value for Cousins. I said to me it sets the value, because in my opinion Cousins is better than Stafford. Stats back me up in having that belief. (I know, it isn't about stats, but rather about the eye test).
If I'm calling the shots at Vikings HQ, I would demand a similar haul for Cousins as Detroit got for Stafford. If I'm not offered something in that ballpark, I'm keeping Cousins.
You and I simply disagree on Cousins' value relative to Stafford. We also seem to disagree on the relative value of Carson Wentz, who looked like a sad, lost child last season.
Look, I get it: if most Viking fans were in charge, they'd trade Cousins for a box of used shoulder pads.