Having raw Josh turn into this Josh was a combination of terrific luck, hard work, terrific luck, great coaching, and terrific luck. Half the fans in Buffalo thought we'd drafted the wrong Josh. I don't blame any other team for not grabbing him.
I never thought Mayfield was the best player, let alone the best QB, in that draft. The Browns took a gamble, and it didn't come up terribly but it didn't win either. That's a B- grade draft pick, not an F.
Here's the thing about Seattle trading Russ Wilson in 2018. What's killed the Seahawks over the past few years was needing to pay Russ, so Pete Carroll traded away or let FAs walk, almost all his star defenders. If Seattle had a solid rookie QB on a rookie contract starting in 2018, they would have kept three or four of their defensive players, and still been an excellent team while that QB got his feet under him and was ready to lead. Seattle would still be a force and not the shell they are now, with all the good defensive players AND Russ gone.