Hello,
Thanks @James_Carl for getting me into this conversation.
I am not familiar with the Gazelles system but as far as I remember, my friend @Arkadi_Jampolski used it in his company? Or was it another one 
?
For high level goals and company alignment I can recommend OKRs a lot, you find more about how Google is scaling its business with it and how to implement with Asana here:
From my point of view, we should use as few tools as possible, so if another software is perhaps 10% better to vizualize your company objectives, I would still strongly recommend to have it in Asana, because
- Less complexity
- Less friction for employees
- Better alignment with day to day to dos
- Less work, since you only have to update one source of truth
There is also a great piece of content from Dustin Moskovitz and Jennifer Nan from Asana:
Definitely worth your time to check out