In 2011 the following players had at least 2 sacks:

KVN (7)
Pendleton (4)
Frazier (2.5)
Wagner (2.0)
Fua (2.0)
Muehlmann (2)

That's a LB, a Safety/LB, a LB, a LB, a LB, and a DE (who only had 3 tackles in 2 games, but did get a sack in each). So of your 19.5 sacks from these players, 17.5 came from linebackers or safeties (89.7%)

The same year for Utah, OTOH, the following players had at least 2 sacks:

Shelby (5)
Reilly (5)
Finau (3)
Kruger (3)
Martinez (2.5)
Blechen (2)
Topps (2)
Fotu (2)

That's a DL, DL/LB, DL, DL, LB, DB/LB, DB, and a DL/LB. So of Utah's 24.5 sacks, 18 came from the DL (73.5%).