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<div>2012 Jacksonville Jaguars final roster (from wikipedia)
 
Defensive linemen
93 Tyson Alualu DT
58 Jason Babin DE
97 John Chick DE
96 Terrance Knighton DT
92 Austen Lane DE
70 Jerome Long DT
99 C. J. Mosley DT
98 Jeris Pendleton DT
91 George Selvie DE
 
Linebackers
50 Russell Allen OLB
56 Kyle Bosworth OLB
53 Brandon Marshall OLB
51 Paul Posluszny MLB
52 Daryl Smith OLB
57 Julian Stanford OLB
 
Defensive backs
38 Antwon Blake CB
21 Derek Cox CB
20 Mike Harris CB
26 Dawan Landry SS
27 Rashean Mathis CB
36 Antwaun Molden CB
42 Chris Prosinski FS
31 Aaron Ross CB
22 Kevin Rutland CB
 
I don't know.  DBs maybe are better.  Linebackers probably worse.  D-Line possibly better.  Pretty close.  
 
DBS are lightyears better - House way over Cox , Gipson even not having touched the field in teal is 10000x better then Chris "Where is the ball" Prosinski , Colvin easily better then Mike Harris and even Amukamara is better then any corner on that list including an aging Rashean Mathis. Landry vs Cyp is even. 
 
At LB we are weaker but not by a ton Telvin helps that alot and even Skuta is a decent-solid player. Poz has aged so will concede that. 
 
On the D-line Marks/Jackson is better then any combo of DTs on that list by a long shot and thats going with what they have already done. Bennett has shown more flash then guys like Pendleton and Mosley did. Chick was/is way better then Branch so i'll give you that. Fowler while unknown could net 5 sacks and be instantly better then any DE on that list but Babin who was already a long career vet. 
 
Overall on paper the current  defensive roster should easily outclass the 2012 lineup. 
 
 
 

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