Difference is, their guy can get separation, as well as being 6'4"229. Great breakaway speed. So, why not draft both Harry & Metcalf. There's no rule, as far as I know, that you can't draft TWO WRs or even a TE before round 4.
The slots the Pats had in round 2, before making that ridiculous trade up to get SlowJuan "Never Used" Williams, were filled by WR's Mecole Hardman & DK Metcalf. Hardman has 23 catches for 450 yards & 5 tds, averaging 19.6 yards a catch, also an excellent return man (punts & kicks). Why not draft HIM instead of a useless slow DB in the 2nd round ? Metcalf is 2nd on the team in receiving stats with 38 catches, 630 yards & 5tds. Why not double dip at WR, one of our biggest needs, instead of a DB you're not using.