I worked at a place that was not dissimilar internally to Accenture, I find the "Juniors are getting fired if they don't have a project for 3 months," quite generous. You had a max of about 2 weeks where I worked, no matter your seniority. You could use PTO to stretch it out & then use internal re-training to stretch that quite a bit since we had approximately 40 hours of annual retraining that could be done 6 months early if needed. But after that, you got met by security at the door & your severance offer handed to you.

I get that you can’t subsidize people without work. But at from what I saw, good juniors got sacked and bad managers were kept. I take that personal and it is one of the reasons I left.