But new coach Nick Saban is said to be looking for bigger linebackers, which is why you might see the Dolphins draft a player at that position this weekend.
There already has been talk that second-year player Tony Bua will be moved to safety, and that's because he lacks ideal size for linebacker.
It's also going to be interesting to see where Zach Thomas fits in when the Dolphins run a 3-4 defense, which is something Saban is looking to incorporate -- to what degree and when isn't really known yet. Thomas was an ideal fit for Jim Bates' defense, but he's awfully small (5-11, 230) for the 3-4.
The Dolphins also don't have a lot of proven depth behind current projected starters Thomas, Seau and Spragan, although they do have backups who are very good on special teams, such as Brendon Ayanbadejo.
This hasn't been a position that has garnered a lot of attention in the offseason, but don't be surprised if the Dolphins make some moves at linebacker during draft weekend.