I don't think Rogers will be around in the 3rd round, especially after his impressive Pro Day. I know that several mock drafts have him listed there, but as they update, you'll see him firmly entrenched in the 2nd round. To tell the truth I'd rather have him over Ertz.
I also want no part of Collin Klein, he doesn't impress me in the slightest and there's no way he's a QB at the next level. His unwillingness to participate with the TE's in the Combine shows me he's another nut who fancies himself a quarterback despite lacking the ability to actually to pass the ball.