Yes as others have said...
Hidden aggression factor is real. I suspect both those guys I named would be candidates for this.
The SB thing is interesting. I have found that if u have a player with a distinctly large difference between his SB and ID, this can affect the number of foul s. Particularly If SB is higher than ID (its almost like the guy attenpt to to block everything but can't and fouls a lot.
Stamina yer. ID yer. But a consistently high fouling player is almost always going to be like that regardless of skill improvements, because of the underlying aggression factor.