First in yards against the pass. Seventh in fewest passing TDs. First in average against. Sixth in completion percentage against.
They need more interceptions, but your criticisms of the pass defense and the secondary seem to be lacking in basis.
They share in 8 losses for a non-play off team just like the offense. Interceptions and sacks are game changing plays and for three years in a row our numbers have gotten worse. You have little chance to intercept a pass when you are instructed to play off the WR and "tackle the catch." Those are the plays that win games not meaningless yardage statistics. So therefore there is a strong three year trend to provide a basis for my criticism.
Playing Fantasy Football does not qualify you to be the in the front office or on the coaching staff of the Pittsburgh Steelers. They are professionals and you are not!