Their top two spots being their best power hitters at 1st glance is unconventional but then you realize that more half of Jennings hits have been for extra base hits so it makes sense since she is in scoring position already a good portion of the time.
Yeah, I've seen more than one college and HS coach place their BEST overall hitter in the #1 spot even though there were seemingly better options for leadoff. OU might have a half-dozen who could fill that leadoff role effectively.