I think that in rotating guys in and out, you would always want to have at least one of Rivers, Simmons, and Sweat out there. Preferably have 2 out there at all times. Rotate them through the first 3 quarters. If we're in a close game and need a big stop, that's when you let all 3 stay in together.
We forget that Rivers is still getting back to "game speed and endurance." All 3 guys are studs, and the other guys we have ain't too shabby. The schedule is going to get brutal and we're going to want to keep our D as fresh as we can. Pass rush is going to be crucial with our growing concern over DB depth.