In all likelihood it's not his call.
Rumph has had success landing 4-star OOS CB's last minute, but struggles immensely landing quality local Corners, it appears that Diaz lets Baker & Patke call the shots as to what kind of CB's he wants.
This eval & recruitment was Patke's, especially considering Curtis will be a Special teamer primarily.
Curtis is an outstanding return specialist & has good upside at Slot WR. At CB he'd be brand new to the position & would have to learn it from scratch. He's a take either way, but it speaks volumes that we can't find a kid who plays CB in HS & also has speed.
But that's where Miami is as a program right now, we operate on either side of extremes. We either get a CB who has ideal size but is on the slower slide, or have to find a WR with speed in an attempt to convert him to CB lol.
At the end of day we'll see how it works out. I think Marcus Clarke could eventually be a good CB once he learns the position, Curtis IMO will be a Slot WR all day.