Editor's note: This has been updated based on the news Virginia Tech CB Kendall Fuller is out for the year due to a knee injury.
Plenty has changed four weeks into the college football season. Here, we'll look at which players have moved up and down our Top 32, drawing on the same scouting reports as before and making changes only where necessary.
We'll continue to update our board as we get closer to the 2016 NFL draft. While it's a given that some players will rise up into the rankings while others will drop out, this provides a good snapshot of which players currently have the most NFL potential based on our evaluations.
(Underclassmen are noted with an asterisk.)
Previous ranking: 1
Bosa entered 2015 having notched 34.5 tackles for loss and 21 sacks during his first two seasons in Columbus -- and he hasn't slowed down in Year 3 (2.5 TFLs in three games). He shows a consistent ability to convert speed to power and uses a wide array of pass-rush moves -- swim, rip, club, spin. With experience playing DE on both sides and moving inside to DT on obvious pass downs, Bosa brings a lot of scheme versatility to the table.
Previous ranking: 3
If you want to watch Nkemdiche at the height of his powers, turn on the Alabama tape. He practically lived in the backfield on his way to racking up 2.5 TFLs and leading Ole Miss to an upset victory. What makes Nkemdiche special is that he has outstanding quickness for his size (6-foot-4, 296) and is versatile enough to play 3-technique or left defensive end in a 4-3 or 5-technique in a 3-4.
Previous ranking: 2
With two interceptions in his first three games of 2015, it's clear Hargreaves is an upper-echelon talent. He lacks ideal size (5-foot-11, 199 pounds), but he has the instincts, aggressiveness and elite cover skills to develop into a good outside starting cornerback in the NFL. More physical than his frame might indicate, Hargreaves does a good job in press-man coverage, consistently redirecting wide receivers.