Hell, they don't even have to be diamonds in the rough to be hard to come by. It's just really difficult to identify who is going to be a good quarterback and who won't be, regardless of if it's a first round pick or a 5th round pick. Remember when everyone was making fun of the Giants for drafting Daniel Jones instead of Dwayne Haskins. It was such a sure thing that they messed that up.
Plot twist, they both suck. You just never know
It boils down to this. In my opinion, in the last decade, there are only 7 different quarterbacks who have actually won a Superbowl and of those, only 3 still have a starting job.
If the only acceptable qualification for a quarterback is whether or not they can win a championship, then there's only a handful of guys who have the pedigree.
Agree 100%.
We know Cousins will never win a Super Bowl, so why keep trying. Move on and roll the dice.