The Cowboys pass rush left a lot to be desired in 2015 and Greg Hardy is not going to be returning in 2016. With the suspension of Randy Gregory on top of that, drafting a pass rusher seems to be a high priority for Jerry Jones and Co.

The Cowboys also need help along the interior of the defensive line. Here are some of their choices and how they performed at the combine on Sunday (not ordered specifically on talent level, just general rankings with an eye towards fit with the Cowboys)

1. Joey Bosa, DE, Ohio State

INDIANAPOLIS, IN - FEBRUARY 28: Defensive lineman Joey Bosa of Ohio State participates in a drill during the 2016 NFL Scouting Combine at Lucas Oil Stadium on February 28, 2016 in Indianapolis, Indiana. (Photo by Joe Robbins/Getty Images) (2016 Getty Images)

Height: 6' 5"

269

: 33 3/8 inches

Combine workouts

40-yard dash: 4.82

32 inches

120 inches

24 reps

Joey Bosa has been labeled the No. 1 overall prospect in this draft by some experts, but some also think he could be available at No. 4 for the Cowboys to pick. Bosa said Sunday that he met with the Cowboys at the combine. The 6'5" defensive end burst onto the scene in his sophomore campaign with a 13.5 sack season, then followed it up this year with 51 tackles and 5 sacks while seeing plenty of double teams.

Expert opinion: "Bosa was a three-year starter at defensive end for the Buckeyes. Against the run, he has a quick punch to shock blockers before shedding and finding the ball. He is very consistent at holding the point of attack on the front side and he uses effort and quickness to make plays on the back side. As a pass rusher, he lacks an elite burst but he generates a lot of pressure because of his athletic ability and technique." -Daniel Jeremiah, NFL.com

2. DeForest Buckner, DT, Oregon

Height: 6' 7"

291

: 34 3/8 inches

Combine workouts

40-yard dash: 5.05

32 inches

116 inches

N/A

Buckner certainly has the measurables to be successful in the NFL. He measured in at 6'7", but the most impressive measurable was his hand size. Check this out:

.@DeForestBuckner's 🖐 size tied the largest in Combine history at 11 3/4 inches, AKA the size of a piece of paper pic.twitter.com/VesPRzcfPO — Erin Maloney (@CallMeMaloney) February 27, 2016

Buckner vaulted up draft board when he recorded 10.5 sacks in his senior season, an impressive total for a player his size.

Expert's take: "Buckner possesses special size and has the quickness, speed, and power to be an every down player. He could potentially fit in a 3-4 or 4-3 scheme depending on what you want him to do. There is no doubt he could be a franchise player and long-time starter in the NFL. Should be a top 10 pick and start on day 1." - NFL Draft Countdown

3. Noah Spence, DE/OLB, Eastern Kentucky

North squad offensive tackle Cole Toner of Harvard (79) fails at holding back South squad defensive end Noah Spence of Eastern Kentucky (97) when he sacks North squad quarterback Kevin Hogan of Stanford (8) in the first half during the Senior Bowl NCAA college football game, Saturday, Jan. 30, 2016, in Mobile, Ala. (AP Photo/Brynn Anderson)

Height: 6' 2"

251

: 33 inches

Combine workouts

40-yard dash: 4.80

35 inches

121 inches

25 reps

Spence was at Ohio State before he was ruled permanently ineligible for failing multiple drug tests in his two years there. He then transferred to Eastern Kentucky and had a monster junior season, recording 63 tackles and 11.5 sacks while commanding a ton of attention from opponents. He was a 5-star recruit coming out of high school.

Sturm's take: "If Spence had no red flags and we simply were watching him race Joey Bosa to the QB at Ohio State these last several seasons, there is a good chance he would be strongly in the mix for a top 5 pick - just like Bosa. That said, he is one interesting redemption story that will continue to play out as draft day approaches. There is no question he could be one of the best players in the 2016 Draft. Or, one of the cautionary tales." - Bob Sturm

4. Emmanuel Ogbah, DE, Oklahoma St.

Height: 6' 4"

273

: 35 1/2 inches

Combine workouts

40-yard dash: 4.63

35.5 inches

121 inches

20 reps

Ogbah's measurables turned out really impressive at the combine, specifically the 40-yard dash (2nd among defensive lineman). At Oklahoma State, Ogbah recorded 10+ sacks in each of his last two seasons as a Cowboy. He is a highly productive player and the measurables should help him come draft day.

Expert's take: "Upon first glance, Ogbah appears unimpressive because he doesn't play with the quickness or athleticism expected of productive pass rushers, but eventually, his translatable qualities avail themselves. Ogbah's power will serve him well against the run, but he will have to become more skilled as a pass rusher. He can play 3­-4 outside linebacker or 4-3 defensive end, and he might have value inside in sub­packages." -NFL.com

5. Shaq Lawson, DE, Clemson

MIAMI GARDENS, FL - DECEMBER 31: Baker Mayfield #6 of the Oklahoma Sooners is sacked by Shaq Lawson #90 of the Clemson Tigers in the first quarter during the 2015 Capital One Orange Bowl at Sun Life Stadium on December 31, 2015 in Miami Gardens, Florida. (Photo by Mike Ehrmann/Getty Images) (2015 Getty Images)

Height: 6' 3"

269

: 32 3/4 inches

Combine workouts

40-yard dash: 4.70

33 inches

120 inches

N/A

Lawson was a consistent performer for Clemson over the last three years, finishing his career with a flurry in his junior season. He recorded a NCAA-best 24.5 tackles for loss to go along with 12.5 sacks to help lead Clemson to the national title game.

Sturm's take: "He is a heck of a player and some team will draft him on Day 1 of the draft and make him an opening day starter, most likely in a 4-3. It will be interesting to see how he does this spring to cement his status in this upcoming draft. There is much work for Lawson to do this spring." - Bob Sturm

6. A'Shawn Robinson, DT, Alabama

Height: 6' 4"

307

: 34 1/2 inches

Combine workouts

40-yard dash: 5.20

26 inches

106 inches

7. Kevin Dodd, DE, Clemson

22 reps

Height: 6' 5"

277

: 34 inches

Combine workouts

40-yard dash: 4.86

N/A

N/A

8. Robert Nkemdiche, DE/DT, Ole Miss

N/A

Height: 6' 3"

294

: 33 7/8 inches

Combine workouts

40-yard dash: 4.87

35 inches

116 inches

9. Jarran Reed, DT, Alabama

28 reps

Height: 6' 3"

307

: 33 3/8 inches

Combine workouts

40-yard dash: 5.21

31 inches

104 inches

10. Shilique Calhoun, DE, Michigan St.

N/A

Height: 6' 2"

251

: 33 inches

Combine workouts

40-yard dash: 4.82

35 inches

115 inches

23 reps