I do not think the Jaguars are a bad team.It's just a team with a horrible QB.Bortles was horrible against the jets today.
Their defense against the pass is very good and yes their run defense was horrible against the jets, it was mainly because of 2 long runs of more than 70 yards.
If our defense contains Fournette and our pass defense continues to play as right now against the horrible QB, the steelers should be in a good position to win this game.