Wanda has always respected Parson's tactical mind. Wanda sees Parson as another agent of Fate, and believes she knows his future well enough to be able to predict that he will suffer and take losses in future battles. The two have a good working relationship, but Parson fears her and considers her a monster.
Wanda has willingly shared some of her secrets with Parson. She does not seem concerned that he might ever use any of them against her.
It appears that after the Battle for Gobwin Knob, Wanda's respect for Parson's tactical mind has increased even more, and Ansom believes that she clears each strategy with him before acting. However, in one case, she has chosen not to follow his advice. Parson has come to lose a great deal of faith in her over her grievous errors involving Jillian.