Evolving Chair and CEO Roles.

• Position: BOARDBOOK

* The prevalence of the combined Chair and CEO role has declined slightly over the past five years, from 59% in 2012 to 54% in 2016.

* The non-executive Chairman role is increasing in prevalence--29% of the analysis sample utilized the role in 2012 compared to 33% in 2016. The use of a Non-CEO Executive Chairman remains uncommon (13% in 2016).

* The prevalence of Lead Directors has grown modestly from 73% in 2012 to 75% in 2016.

* Total compensation was $405,000 for Non-Executive Chairs and...