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It was a scrappy effort against a team they knew very well from an offseason scrimmage just a few weeks ago. The team may have gotten the win, but the Titans defense got punked by the Falcons offense for much of the first half when the starters were in.
You could consider it the third game in a row that the Titans' defensive starters looked mediocre, with just a few glimpses of solid play. Who knows how many points the Falcons would've manufactured if it had been a regular-season game.
The biggest issue I see with this defense right now is being in the right place to make tackles. Some of the open spots on the field were big enough for any quarterback to make throws in, much less Matt Ryan.
Tackling in the secondary looked terrible as well. Coty Sensabaugh whiffed on a tackle of Julio Jones that led to a big touchdown score. Jones does that to a lot of people, but Sensabaugh has to be much better if he's going to be able to play on the outside.
Blidi Wreh-Wilson didn't look much better. It leaves this cornerback battle still too close to call, but Wreh-Wilson should win the job on the outside, leaving Sensabaugh in the slot.
One of the few bright spots on defense was Jurrell Casey. He consistently got pressure into the backfield and looks like he's primed to follow up a great 2013 season that ended in 10-plus sacks.
However, this defense has to get much better if the Titans are going to improve on a 7-9 record. The offense is making progressions, but they're not going to be able to win in shootout fashion very often.