SOC-CMM: Business Domain - Charter

[cgergen]

Can anyone help me better understand the expectation of 3.2.7 Accountability under the Business Domain - Charter? The remarks state "Accountability for the SOC for actions taken". What would you expect a Charter to include regarding "Accountability"? A simple statement on who is ultimately accountable for the SOC (e.g. CISO)? A RACI matrix that defines responsibility and accountability for the various services provided by the SOC?

Thanks in advance. First time working through the SOC-CMM and just looking for input from others.