For those four positions second third fourth no order.
1st Edge, Dline, CB.
If you need a plug and play prospect early first two days is a great place to start.
WR’s and CB’s are becoming easier to find with the Spread offense’s through out football.
This has also drove a change in LB’s and Safeties.
Smaller faster more coverage then thump.

You can’t fall into the floor ceiling debate. But every pick made is based on what they can become with time in NFL training coaching and experience. .
And for most what can they be when fully matured with that training and coaching.