NFL: Jaguars sign former Columbia standout Timmy Jernigan amid bad breaks with Lynch, Gunter and Oliver

Defensive tackle Timmy Jernigan spent the past three seasons with the Philadelphia Eagles. (TRIBUNE NEWS SERVICE)

JACKSONVILLE — Jacksonville Jaguars coach Doug Marrone should be used to this by now.

Marrone has endured a three-year run of daunting setbacks, a lengthy list that includes losing four left tackl…