I agree SA can be subtle, and I wondered too if some players are "naturals" for a certain SA, or overall skill balance. Is there some MC who should naturally be dribblers, while others get the most benefit with PM instead. I do think some players naturally shoot more goal attempts, and want to believe in some other "internal" traits like Khris. For now, we just don't know... formulas with only visible skills and traits, formulas with extra internal factors, random dice rolls, formulas unrelated to what we see...