The system rankings were yesterday, today ESPN's Keith Law released his individual top 100 (note: Insider content linked above). He also sorted the list by team's top 10s (also Insider).
Cub Top Ten (ranking in top 100 in parentheses):
Jackson (89... and at this point we have to assume Jax kicked Law's dog somewhere along the way)
Concepcion wasn't included as his signing isn't official, though Law doesn't seem impressed by him, either.
Another bit from his rankings worth noting... Hak-Ju Lee is the #12 overall prospect and Chris Archer checks in at #63. Just food for thought.
I know Law isn't real popular around here and with some good reason. But we can discuss his list, anyway.