How will the post-2015 High-Level Panel prioritise?

As the post-2015 High-Level Panel holds its first meeting, Claire Melamed offers her take on the options:

“the panel’s job is to prioritise between the 101 good ideas that are out there, and to tell a story explaining the decisions they have made which is convincing enough to persuade others that it’s the right way to go. One way to do that might be to go back to thinking about what a new agreement might be for. There seem to be three (why is it always three?) ideas around..”