RAVENS SPECIAL TEAMS: As in every other phase, the Ravens were shaky on special teams last week in London. Otherwise, they haven't been too bad. They just haven't made any game-changing plays that Jerry Rosburg's units are accustomed to making. The Ravens, who have used three players on kick returns, have yet to take one out of the end zone. They are in the middle of the pack in punt-return average. Their coverage teams, however, have been good statistically.