Cooper has been fantastic this season, and it is a bit of a bummer to see a 49ers draft pick flourishing elsewhere....Based upon the stats alone, Cooper is clearly a guy the 49ers probably should have kept around.
My counter-point at the time was Cooper hadn't faced much in the way of quality quarterbacks, so he naturally looked good in coverage. You'd agree too unless you think Blaine Gabbert, Jeff Tuel, and Ryan Fitzpatrick are elite passers. But anyways, it was only a matter of time before the rookie got tested, and boy did he get schooled by Peyton Manning and Eric Decker on Sunday. They torched him for 4 touchdowns en route to a Broncos victory at Arrowhead - welcome to the NFL Marcus!