In a post before I had said that Schimitt-Grohe, Martin Uribe and Ricardo Reis were joining Columbia, and there were 2 big offers for econometrician still pending. One, Marcelo Moreira (from Harvard), was already confirmed in this forum to have accepted the offer. The other offer outcome is the new thing: Jushan Bai (from NYU) has just also accepted a position at Columbia.
Now, the Econometrics team at Columbia is headed by the co-authors Bai and Ng.