My experience while working in consulting - 1-2 dev, 2 testers, 2 analysts, subject matter expert, scrumbag, product owner, platform owner, designer but she’s always very busy, and some other people that rhyme with management. So about 10 people managing 1 persons work which in principle I’m fine with, except you need to sit just insane amount of meetings and meeting with more than 2 people is horribly exhausting for me.