Admin -> Access Settings -- why the three officers constraint?

Looking at the Admin -> Access Settings section, I noticed when I try to configure all officers for a particular module (Create New Agendas), I get an error:

Select at most 3 officers for this module.

Why is there a constraint on the _maximum_ number of three officers that can be given access to the various admin consoles? Several of these admin consoles we should want to have maximum coverage (i.e., all officers should be able to manage/add new agendas; all officers should be able to upload files; etc). 

bgoad, Mebane Toastmasters