The Dolphins made two significant upgrades on defense this offseason with new coordinator Vic Fangio and cornerback Jalen Ramsey. However, Ramsey is expected to be sidelined until at least December after undergoing a full meniscus repair during training camp. When fully healthy, the Dolphins should have one of the best secondaries in the NFL with Howard, Ramsey, Jevon Holland and Brandon Jones, so Fantasy managers should keep the unit in mind come playoff time. Hopefully Fangio will bring out the best in pass rushers Bradley Chubb and Jaelan Phillips as well. Consider the Dolphins DST a sleeper unit this season worth drafting with a late-round pick in all leagues.