Centralised or decentralised authoring?

I found a new site which I have found helpful as I explore CMS and authoring.  The author lays out an interesting series of arguments that is worth reading:

"When implementing a new enterprise-wide content management system (CMS), most businesses assume a decentralised model of authoring.

This devolves the responsibility for creating content back to individual staff members within the business units.

While this is seen as an effective way of reducing costs and increasing involvement, it is not without its challenges and risks.

In practice, neither centralised or decentralised authoring is the single answer to all requirements.

To gain the best business outcomes, it is necessary to use both models where appropriate, with a full understanding of their strengths and weaknesses."