Ideal player skills

Has anyone done any testing on this?
E. g. the game would had us believe TSP are best skills for RB and LB players.
I ve copied the same club 20 times and gave those players just one of the 7 skills and ran two leagues with 190 games each to see who will come up on top. (other players had no skills)

Based on that it seems that Heading or Shooting for those players brings in more points on average than Passing does.
There is a clear random factor throwing clubs all over the place, but on avg it was like this:

T 272 pts
S 254
H 234
V 234
F 224
P 217
C 212