It's called betting, but that might be a bit of an exaggeration.
Once Sandra realized clearly that she definitely could not tread a path without the support of her family, she switched her thinking.
Since she herself couldn't, or rather, it wouldn't be convenient to inspire the children of those major families in the academy's main world division to strive for progress, she would find someone else to do it.
The person she selected for this task was none other than Link Grande.
The "Do Anything You Want" Department, and the soon-to-be established Grande Main Force, served as both a way for Sandra to recruit children from the main families who leaned towards her ideology, and an excellent vessel to challenge other wizards.
If the children from major families who joined the "Do Anything You Want" Department and the Grande Main Force performed better than their peers, wouldn't that prove her ideology?
Thinking to this point, Sandra was expectant of Link giving a positive response.