Good advice celstu
Infinity,
At this point, I don't think it will make much difference as to who gets the knife first, and, YOU
don't decide who is Alpha qualified. That's internal Pack business, they've already made those decisions, and it appears that Nina has the lead. Though it's tough to see/witness, resistance from the other Pack members, only strengthens Nina, and "proves" to the others, she's qualified.
Now, it's up to you go make all that work for her !
The key is patients and consistency.
PS:
Males will not get involved with Alpha Female struggles.