It can be better, but it also can be just as chaotic sometimes. On balance overall, FAANGs are probably better at managing this "IC utilization" rate if you wanna call it that, vs just randomly expecting you to pick up and wear all the hats all the time or that hats are chaotically assigned, with no plan behind it. Certainly FAANGs aren't perfect, but at least it's easier to find "reference implementations" because there certainly are some very high-performing and well-managed teams, and if you're not on one yourself, then you can at least have the benefit of being able to see-and-compare, which then provides a potential for betterment and learning from others (which might be harder in non-FAANGs).