It’s a 4-2-5 the two LBs have very similar roles. The star/rover/slot cb (Scott) is typically the Will in 4-3. That spot is not typically interchangeable because that guy is in coverage a lot more. Just like in the 5-2 and 3-4. Under no circumstances can you put a thumper like Toure there! The two LBs (Mike and Sam) have similar roles and they typically have guys play both with Sam on the TE or strong side. If you look at the highlights you can see Chase in with either Toure and Wes, but mostly with Toure. They rotated those 3 frequently