I'm looking for an SEO Manager that will oversee other outsourced SEO specialist, one per website.
There are three to four websites. The SEO manager will actually build the team and track the work, ensuring that the plans make sense and that they are properly executed. The SEO manager will monitor results (we use SEO Moz and a couple of other SEO tools). Once a week or every two weeks or however often we (meaning the SEO manager and me) think appropriate, we will review the results.
I expect this to be an on-going task. The actual websites that we do SEO for may change a bit over time. Once the task is better understood and agreed to, we can agree on a number of hours per week for this activity.