The agenda should be somewhere between 8 and 12 points. Be general rather than too specific. For example an item regarding the availability of business resources would be better stated as "Resource Availability" than "What resources can you commit". The former allows you to venture into areas such as who may be seconded from other areas.
It may become necessary to change the agenda after one or two meetings. For example, IT hardware may be a particular issue that needs to be covered. Rather than send the agenda in advance, take it with you to the meeting and go through it at the start of the meeting. This gives you the flexibility to make last minute changes. You might even have different agendas for different people.
The questions in the attached template are by no means the
only questions. Pick questions that are relevant to your situation
and add questions that are specific to the concept. Have your
own agenda with questions for each topic. Also remember to add
to the Phase Zero Interview Questions document if you have any
questions you think might be useful for future teams.