Aaron Schatz of Football Outsiders posted yesterday about NFL teams and their use of the empty backfield formation. You won't be surprised at all to see the Titans near the bottom of the list. In fact, they were 31st in the league in terms of percentage the empty backfield was used, just 0.7% of the time.
In addition to never using the formation, the Titans were terrible when they did use that formation. Their offensive DVOA on those plays was -110.7%, and they gained an average of 2.3 yards per play.
To put those numbers in some context, the NFL average for percentage of empty backfield plays was 5% of the time with a DVOA of 16.6%. The only team close to the Titans in DVOA was the Jets at -99.4%.
Part of the problem here is that the Titans only use that set when it is 2nd or 3rd and long, so the success rate on those plays in general isn't very good.
I hope the new staff will use more of the set where they motion Chris Johnson out to the slot in an effort to create match-up problems for the defense.