Observations: We saw how much the Ravens tailor their linebacker rotation to the opponent, as Harrison quadrupled his snap count from Week 17 and played the most he had since the last time the Ravens faced the Titans and 6-foot-3, 247-pound running back Derrick Henry. The smaller Board, meanwhile, played his lowest defensive snap count since Week 10. The Ravens had to be thrilled that they shut down Henry without asking for extreme workloads from their veteran defensive linemen, Campbell, Williams and Wolfe. Given the importance of fortifying the middle, they went back to Ellis, who was inactive for Week 17. They leaned toward veterans on the edge, where Judon and McPhee gave them terrific production on modest workloads. Again, they have to be happy they’ve performed so well while keeping these guys relatively fresh. In the secondary, the Ravens tightened their rotation considerably, keeping their top two safeties and top two cornerbacks on the field for every defensive snap. With Smith back, Anthony Averett did not play a single defensive snap; he averaged 54 the last three weeks of the regular season. We saw a similar pattern the last time they played the Titans, so Averett will probably return to the field against opponents that use more wide receivers.