It's ridiculously stupid and VERY basic that you'll think I am lying but:
- we are usually ahead of wide ranges so betting into them should amount to a lot of folds

- conversly, when they have a tight range we are usually behind and we want to see as many cards as possible

These are straight from PMs with my coach.

Obviously, you adjust to these concepts when you have bluffs/nuts and play accordingly. There are a few other concepts but this was the gist of it and I guess it'd make more sense if you watched this person use this stuff in game which really helps. It's basically ISF stuff to its core(who is the coach I am talking about anyways) as in his theorem, other theory posts, etc.