Dwight Clark was an All-Pro caliber WR during these years though....just saying...
He was, but Freddie sure wasn't.
And the whole argument of "Duper wouldn't be an all=pro with Dan" is much easier to be made for DC.
Clark was a 10th round pick while Duper was a 2nd round pick. The only reason Walsh drafted him is because he was the guy Montana worked out with when Walsh worked him out before the draft