I've worked for startups for 10 years and recently joined a FAANG company. Compensation and stability were part of my motivation, but the biggest reason was the assumption that I would be able to work with A+ players solving hard problems.Instead, I'm on a team that has and horrendous turnover and is staffed with below-average IQ people.This company builds EVERYTHING in house, and the toolset is like going backwards in my career 10 years.If I do want to stick this out and turn this team around, I'm going to be working nights and weekends for at least a year - there's just too much to fix.I've told this to lots of people who work in other division (that I can trust) and they've said the easiest thing is to just accept it as it is and coast. I've never done that in my career and don't think I could do that.Has anyone been in the same boat? I'm told that it becomes easier to switch teams after a year.I feel like I've made a terrible decision and don't know what to do next.Any advice is appreciated.