jj2The Dallas Cowboys have many holes to fill in the coming up 2013 draft.  In my opinion these are the areas that the Cowboys need to address this year.  Many experts have express that this year's draft is loaded with talent in the trenches which is a huge plus for a team like the Cowboys that is switching from a 3-4 defense to a 4-3 Tampa 2 defense with new defensive coordinator Monte Kiffin and are in dire need to upgrade their offensive line. Positions Needs: 1. Offensive Line  2. Defensive Line  3. Safety  4. Linebacker (depth)  5. Running back (depth)Part 1 will focus on the defensive side of the ball the defensive line, safety, and linebackers positions.Below are the top five ranked 2013 draft prospects at the positions that I think will fill a Dallas Cowboys need for next year.  Defensive Ends
1. Bjoern Werner 6-4, 256, Florida State
2. Damontre Moore 6-4, 250, Texas A&M
3. Barkevious Mingo 6-4, 240, LSU
4. Dion Jordan 6-6, 243, Oregon
5. Sam Montgomery 6-5, 260, LSU
Other players to watch:Alex Okafor: 6-4, 265, Texas (Projected 1st-2nd rd)Career Stats: 150 tackles, 34.0 tackles for a loss, 23 sacks, and 7 force fumbles.Margus Hunt: 6-8, 280, SMU (Projected 2nd rd)Career Stats: 112 tackles, 28.0 tackles for a loss, 16.5 sacks, 1 interception, and 2 force fumbles.Barkevious Mingo: 6-3, 240, LSU (Projected 1st rd)Career Stats: 119 tackles, 29.0 tackles for a loss, 15.0 sacks, and 4 force fumbles.Defensive Tackles
1. Star Lotulelei 6-3, 320, Utah
2. Sheldon Richardson 6-3, 295, Missouri
3. Johnathan Hankins 6-3, 320, Ohio State
4. Jesse Williams 6-3, 320, Alabama
5. Sharrif Floyd 6-3, 303, Florida
Other players to watch:Kawann Short: 6-3, 310, Purdue (Project 2nd rd)Career Stats: 186 tackles, 49.0 tackles for a loss, 19.5 sacks, 2 interceptions, and 2 force fumbles.Sylvester Williams: 6-3, 320, North Carolina (Projected 2nd-3rd rd)Career Stats: 96 tackles, 20.5 tackles for a loss, 8.5 sacks, 1 interception, and 1 force fumble.Strong Safety
1. Matt Elam 5-10, 202, Florida
2. Robert Lester 6-1, 212, Alabama
3. Shawn Williams 6-0, 211, Georgia
4. Jonathan Cyprien 6-0, 209, Florida International
5. Duke Williams 5-11, 201, Nevada
Free Safety
1. Kenny Vaccaro 6-1, 218, Texas
2. Eric Reid 6-2, 212, LSU
3. Phillip Thomas 6-1, 210, Fresno State
4. Bacarri Rambo 6-1, 215, Georgia
5. Tony Jefferson 5-11, 212, Oklahoma
Linebackers
1. Jarvis Jones 6-2, 242, Georgia
2. Alec Ogletree 6-3, 234, Georgia
3. Khaseem Green 6-1, 236, Rutgers
4. Arthur Brown 6-1, 228, Kansas State
5. John Simon 6-2, 256, Ohio State
Sources: sports-reference.com