If we take him that high it's got to be for man-to-man abilities so he is going to need to run a 4.4 so we are sure he can hang with the best receivers. I am going to be very interested to see what his official height and weight come in at too. I think Hargreaves could make himself an easy pick at 4-5 with good measurables and combine performance. If he only measures so-so and doesn't time really well, he's more likely a 5-10 range guy.
His tape is good, but I don't think his coverage abilities are as good as Marcus Peters, who I thought was the best pure cover corner in last years draft, much to the dismay of most of the draftnicks here. I think Hargreaves is a better overall corner however, as he is a better and more willing tackler and I think he can play inside and out, unlike Peters.
If the team keeps Claiborne, Hargreaves and OScan could split duty in the slot and Jones could still play his tweener safety/corner role. We would have tremendous flexibility having three guys who can play on the inside and excel there.