With the NFL combine starting Wednesday, here's a look at the Jacksonville Jaguars' positions of need on offense and which prospects the team might be looking to take a closer look at in Indianapolis. Positions of need are listed in order of importance. A look at the defense comes Tuesday.

JACKSONVILLE, Fla. -- The Jaguars have a lot of holes to fill on the roster and the next part in the process comes this week when general manager David Caldwell and head coach Gus Bradley evaluate, watch and interview prospects at the NFL combine.

Here's a breakdown of what the Jaguars need, in order, on offense and some potential targets:

Quarterback: There's no question this is the Jaguars' top need, although pass-rusher is only slightly behind. Caldwell wants to re-sign Chad Henne before free agency begins next month, but Henne is a bridge player or someone who can mentor a young quarterback and begin the season as the starter if the rookie isn't ready. The Jaguars haven't completely given up on Blaine Gabbert, either, but he's entering the final year of his contract and it would be surprising if he were re-signed after 2014.

Potential targets: Teddy Bridgewater, Blake Bortles, Johnny Manziel, Jimmy Garoppolo, Derek Carr, Aaron Murray.

Interior offensive line: The Jaguars have to find a center to replace the retired Brad Meester and a left guard to upgrade from Will Rackley. The Jaguars will address this area in free agency as well but the team also wants to add some young talent. The Jaguars appear set at both tackles (Luke Joeckel and Austin Pasztor) and right guard Uche Nwaneri has two more years remaining on his contract. He's scheduled to make $4.775 million in each year, though, and could be a cap casualty after 2014. Mike Brewster and Jacques McClendon can play guard and center but neither appears, now anyway, to be the long-term answer. It wouldn't be surprising if the team took an interior offensive lineman in the third round, especially if the Jaguars took a quarterback earlier.

Potential targets: G Gabe Jackson, G David Yankey, G Brandon Thomas, C Marcus Martin, C Weston Richburg, C Russell Bodine.

Running back: The Jaguars are more than likely going to lose Maurice Jones-Drew in free agency, which leaves them with Jordan Todman, Denard Robinson, Delone Carter, and Justin Forsett on the roster. Forsett is likely going to be cut, but even if he's retained none of those players is a feature back. The Jaguars don't need to invest a high pick at this spot because good backs can be found in the later middle rounds.

Potential targets: Lorenzo Taliaferro, Jerick McKinnon, Tre Mason, Lache Seastrunk, Dri Archer, Andre Williams.

Receiver: The Jaguars aren't planning on getting anything from Justin Blackmon in 2014 because they don't yet know his status, which is the correct way to approach his situation. Cecil Shorts is entering a contract year but has yet to stay healthy for a full season. Ace Sanders, Mike Brown, Kerry Taylor, Lamar Thomas, and Stephen Burton are complementary players. The Jaguars need to find a bigger, physical receiver. If they do that in free agency, this area drops to the bottom of the offensive needs list.

Potential targets: Josh Huff, Odell Beckham Jr., Davante Adams.

Tight end: Marcedes Lewis came on strong at the end of the season and he should be a 50-catch player in Jedd Fisch's offense if he stays healthy. After Lewis, though, there isn't much. Clay Harbor is a flex tight end but he's a free agent and the Jaguars will have to decide if they want to re-sign him. Danny Noble is raw and needs more work. The Jaguars want a bigger tight end who can line up next to Lewis in two-tight-end formations.

Potential targets: Marcel Jensen, C.J. Fiedorowicz, Crockett Gilmore, Jake Murphy.