It hasn't been listed as an offseason priority, like bolstering the offensive line, finding another pass rusher and upgrading the receiving corps, but the Ravens would very much like to strengthen their special teams coverage teams. Only one team allowed more yards per kickoff return and only eight teams allowed more yards per punt return. The Ravens also allowed three return touchdowns. I don't see them investing a lot of money to do this, but there are some pretty accomplished special teams players on the market, including one of their own free agents, Brendon Ayanbadejo. Kassim Osgood, Legedu Naanee, Isaiah Ekejiuba, Devin Thomas and Derrick Martin are among the free agents who have played well on special teams in the past.