Immediately start tracking all the applicants and what stages they are in, how much funding/traction/etc they have and which segment vertical they are in and then seeing how well they all do.
This will be a very interesting experiment.
Serious question. Is there anything I can start doing/capturing that would help?
/s - because much of the data you'd have on such early stage co's is identity-based, and therefor chock full of bias.
YC has always admirably stretched the scale of vc. This will be an interesting experiment now at this scale--and I'm especially curious how you'll measure progress along the way.