The problem is, Metcalf’s tape, albeit limited, doesn’t back up him being a “slow” WR at all. I think it’s more likely he was nervous, tight, slipping, you name it during his cone drills. His per game production is perfectly fine for a WR of his age. In fact, he was more productive than Julio Jones at his age.
That being said, I’m still wary of him at 9. I won’t hate the pick, but I won’t love it either. It doesn’t have anything to do with his production moreso his injury history. I’m always super wary of guys who can’t stay healthy even in college. In addition to that, this is a deep WR class. Your going to get a good one in the 2nd, maybe even 3rd. So I will advocate not going WR at 9.