Well...Lydia is HoF and like Inbee Park she could turn it on and win at almost any point in her career.
Nelly hasn't quite proved that yet, but I think most here expect more than a few wins out of her.
Sadly the recent number 1s that have declined include Ariya Jutanugarn, Jin Young Ko, Sung Hyun Park and no doubt others I've forgotten. And yet others like Amy Yang and Celine Boutier still turn up for the occasional win. Brooke has been quiet recently.
Putting can improve - Minjee Lee has proved that this season.