same results.
the best position is a result of the skills, not the other way around.
This means that the skills are taken to calculate the best position for the player, and therefor this can even change when a player is trained in certain skills (e.g. if you train your PG a while in JS, he might be listed as a SF after a while.)
The result of this calculation shows you the suggested position (so not nessecary best!), and this result does not influence anything in the gamecalculations.
hope this helps.
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