I don't really see how any of these are a problem with Angular specifically and not just a general problem with any development. With any team that has varying

I don't really see how any of these are a problem with Angular specifically and not just a general problem with any development. With any team that has varying experience, the beginner developers are more likely to write bad code regardless of the framework. You need to be careful with any project that is likely to grow.. it's called technical debt. You always want someone experienced with the domain to look through the code. The solutions include, coding standards, code reviews, pair programming, refactoring, automated tests.. all the usual agile suspects.