Per Rivals:
Obi Ezeh has been playing both the Mike LB and the Sam LB. When he plays Mike, Marrell Evans plays outside, and when Ezeh plays Sam, John Thompson plays inside. RR said he prefers Ezeh inside, but wants him to be comfortable with both. Panter is playing the other LB spot.
Brandon Harrison seems to be the starting safety, but plays the slot corner when we go to nickel and dime, with Charles Stewart coming into the safety spot. Cissoko has been the dime back.