I deal with this type of situation on a daily basis. It turns your team into firefighters instead of being able to focus on building more value. When I hire n

I deal with this type of situation on a daily basis. It turns your team into firefighters instead of being able to focus on building more value. When I hire new people, I hammer clean code and TDD. I am not dogmatic about it, I just know from experience that maintainable code makes for a more enjoyable experience for everyone on the team.