2023 NFL Draft: The biggest differences between PFF's big board and mock draft ADP

• CB Cory Trice, Purdue: Trice is a top-100 player on PFF's big board but is being drafted around the No. 165 pick.

• WR Nathaniel Dell, Houston: Dell pulled in 108 receptions for 1,399 yards with 17 touchdowns in 2022 but is about 20 spots higher on PFF's big board compared to his average draft position.

Estimated Reading Time: 3 mins

With the 2023 NFL Draft getting underway next Thursday, we’re taking a look at the biggest differences between Mike Renner’s big board and average draft position in PFF’s Mock Draft Simulator.

S Anthony Johnson Jr., Iowa State

• Big Board Rank: 69
• ADP: 151.8

Having played 3,159 snaps since 2018, Johnson produced a 69.1 PFF coverage grade or better in all five of his college seasons. He moved to safety in 2022 after playing outside cornerback for most of his college career.

CB Cory Trice, Purdue

• Big Board Rank: 95
• ADP: 164.4

Coming off the best season of his college career, Trice allowed just 21 catches on 44 passes thrown into his coverage this past season. He also missed only four of the 109 tackles he attempted over the past five seasons.