The 12 personnel formation is where the offense lines up in a two-tight end set with one running back.
Last week against the Falcons, the Texans had multiple big chunk plays out of the 12 formation, one of which was a touchdown pass to Will Fuller.
The offense uses both the run and pass out of this formation evenly.
One stat that certainly pleases fans is that Deshaun Watson is sacked only 2% of the time in this formation.
The team lines up in the formation 23% of the time in which their successful play rate is 8% higher than their more common three-wide receiver set.
This rate is second in the league only to Seattle and Baltimore, who come in at 61% success rate.
The New England Patriots made this formation very popular when they had both Rob Gronkowski and Aaron Hernandez.
Could O'Brien be taking a page out of the Belichick playbook with his new offensive playmakers in Darren Fells and Jordan Akins, who are developing into legitimate TD threats?