Kam Chancellor for Seattle is a freak size for Strong Safety 6.3 232lbs, he adds a crazy
dynamic over the middle for them.
We have a couple ILB players on roster who might be on the bubble, Deron Furr 6.3 230lbs and Josh Martin 6.3 242lbs both are 4.6 to 4.7 40 speed, roughly identical physics to Kam Chancellor.
Husain Abdullah is a solid player, but isn't fast enough(4.7 40 speed) to play free safety, and while not small, could be over matched by tight ends in middle, blocking and coverage.
Eric Berry is the most experienced DB on the team, He is bigger and faster than Earl Thomas of Seattle, and probably a better player over all. Berry switching to free safety in this scheme seams the best choice. He can captain the center from the back, and take the angles and close fast on the outside if someone breaks from corners. Berry takes Commings, Sorenson, Gaines, maybe Kearney, and a van dyke and puts them thru the paces for Free safety see what shakes out. The rest of the DB's, Parker, VanDyke etc all get tough and talented backing up Smith and Coop.
Abdullah as Strong Safety to start camp and season, gets the two giants and trains them well on the position. Furr has experience playing safety and backer so has a leg up on martin.
I think Joe Mays has a injury history and will be hard to call the starter, but go with the flow.
So DJ and Mays to start ILB, you get the Johnson Trio in gear, Nico, Ben, james-Michael... you also have Dee Ford as a floating ILB/OLB...he can back Mays or Start inside, or role relieve houston and hali.
Josh Martin could be backup for Furr/abdullah, as well as DJ, Mays, Ford, and the Johnsons.