We need the login to function like this (at least):

Users log in using an arbitrary email address, which becomes their username.

They select the role they are logging in as from a drop-down.

Like this:


Email Address: ____________________
Login as: [       ]  <-- drop-down box with roles

We need this because soon people are going to be hammering the system, and entering a lot of ambiguous things. We will need to contact them and ask them: "What were you thinking?". Without their email address, everything is going to say: "SME", which will be no help.

So we need unique identification. This looks like the shortest path. Arbitrary email address entry until we can get LDAP integrated auth.