I think it's easy to spot player at most positions, DB seems to be the hardest to judge for me. here's how i see it for D1A, what do you think?
cornerback (must have 85+ speed):
#1 technique
#2 game instinct
#3 ath / hands / elu
safety (must have 80+ speed)
#1 game instinct
#2 tkl / technique
#3 ath / hands / elu
as an aside, i have a db with 10 stamina who plays 80% of the game in "fairly fresh" which makes me think that attribute is quite worthless..