Group names

I walked up to a group of my macroeconomist colleagues at Michigan outside of Lorch Hall a couple of weeks ago. I always try to say something amusing in such situations so I wondered aloud what one might call such a group of macroeconomists, along the lines of a herd of cattle, a flock of seagulls or a gaggle of geese.

The response, from a colleague who will remain nameless to protect the guilty: "how about `a bunch of idiots'"?

This seems a bit harsh to me ... but who am I to say?