Strelow base hit to beat Florida State and Cox PH HR to beat Northwestern. Clutch hits in tight ballgames on the road against very good competition. So, I’d argue that they have proven they can come through in the clutch, unlike the rest of the players being discussed above.
I agree with you that Ehlke is likely not an everyday player. We’ve seen two seasons of her and she hasn’t shown anything but the ability to either walk or strikeout. She has shown power in fall ball and yes, it was against lower-level pitching. But she could make a significant contribution by hitting just one home run at the right time in postseason so she needs to keep grinding away.
Chavez improving her average to near .300 isn’t beyond the realm of possibility given what she did as a freshman, and I think Valencia and Leschber could both eventually hit for average and some power. Whether that will be this year or not, time will tell.