If the Jaguars’ front office and coaching staff wants a final double-check on some of the top defensive players in this week’s NFL Draft, they should walk into the team’s quarterback meeting room.

In there will be second-year passer Brandon Allen, who started 38 games for Arkansas, including the entire 2014 and ’15 seasons.

Allen posted an 18-20 record and set a Razorbacks record with 64 touchdown passes, all the while facing college football powers Texas A&M, Alabama, LSU, Auburn and Kansas State in his final season.

Last week, Allen gave his scouting report on several defenders he faced in 2015. At the top of his list?

"[Strong safety] Jamal Adams always made an impressive because he was everywhere on that LSU defense and did a lot for them," Allen said.

Texas A&M: DE Myles Garrett

Arkansas lost 28-21 to the Aggies at the Dallas Cowboys’ home stadium. Allen was 20-of-25 passing for 225 yards, one touchdown and one interception. Garrett, then a true sophomore and now the presumptive top overall pick, had one sack and one quarterback hit.

Allen: "A beast. He was the player that when you do your game plan, you designed plays and protections around him and figure out ways to keep him away from the quarterback and ruining your game plan. We did a couple of things – two guys on him in pass protection and different run-checks to run it away from him and then some draws to keep him honest so he couldn’t pin his ears back and rush me. We had a lot of things schemed for him, but he still wreaked havoc. And if you’re designing a game plan against a certain guy, he’s already affecting you [before the game starts]."

Related: A year-by-year review of Jaguars first-round draft picks

Alabama: DE Jonathan Allen

Two weeks after losing to A&M, Arkansas traveled to No. 8 Alabama. Jonathan Allen, expected to go in the top 10, was a true junior and had only one tackle and one pass breakup in the game.

Brandon Allen was 15-of-32 passing for 176 yards, two touchdowns and one interception in a 27-14 loss to the Crimson Tide.

B. Allen on J. Allen: "Very good. A big, run-stopping guy. He’s freakishly athletic like you’ve seen and some of the things he did as a defensive tackle in our game were pretty astonishing. He was a guy that was hard to run at. He can take on the double-team and move the offensive line and get into the pass[-rushing] game. He’s a big, intimidating figure. He wasn’t outside [at end] as much and was [more of a] three-technique [tackle]."

LSU: Jamal Adams

Arkansas had won three straight – scoring at least 53 points in each game – when it played at No. 9 LSU. Allen was 9-of-16 passing for 141 yards, one touchdown and one interception in the Razorbacks’ 31-14 upset victory. But Adams, the top strong safety on the board this week, was a force: seven tackles (1 1/2 for lost yardage), one fumble recovery and one interception.

Allen: "Really good player. Really good athlete. Knows the game. Will come down and make plays in the run game and also very solid in coverage and can play the ball. Really good ball skills. The all-purpose strong safety. I want to say in our game, he moved back and forth and they wanted to feature him on their defense to make most of the plays."

LSU: Tre’Davious White

White played 49 games so he and Allen faced each other more than once. In their final meeting, the aforementioned Arkansas win, White had three tackles. He is expected to be a first-round pick on Thursday.

Allen: "I played him a few times. He’s one of those long corners [5-foot-11] and was tough to go against because he could his hands on the receiver and play the jump balls and is able to defend the bigger receivers. And he was fast [4.47-second 40 at the combine] – there hasn’t ever been an LSU DB who wasn’t fast. Fast and long is a good combination for a corner."

Kansas State: Jordan Willis

Allen finished his college career with a 45-23 Liberty Bowl win over Kansas State. Allen was 20-of-26 passing for 315 yards, one touchdown and one interception. But Willis had five tackles and two sacks. He has gained pre-draft momentum to the point that he could go late in the first round.

Allen: "He’s a really good athlete, really fast and covered a lot of ground. He played D-end against us and was really quick for a guy his size [255 pounds] – kind of surprisingly quick."