NFL PREVIEW: Biggest jump for Jaguars could be on defense under Pederson

Jacksonville Jaguars linebacker Josh Allen celebrates a sack against the Pittsburgh Steelers during a preseason game on Aug. 20 in Jacksonville. (GARY MCCULLOUGH/Associated Press)
Jacksonville Jaguars linebacker Josh Allen celebrates a sack against the Pittsburgh Steelers during a preseason game on Aug. 20 in Jacksonville. (GARY MCCULLOUGH/Associated Press)

JACKSONVILLE — When the Jacksonville Jaguars returned from halftime of their third preseason game, most offensive starters were no longer wearing shoulder pads. They were done for the night.

The first-…