I disagree. What happens if one frontend or backend developer isn't available (quits, vacation, etc)? One of your full stack developers can fill in. You're payi

I disagree. What happens if one frontend or backend developer isn't available (quits, vacation, etc)? One of your full stack developers can fill in. You're paying for flexibility as well. However,. I think that two good full stack developers should be able to outperform a frontend/backend pair because they reduce the need for communication. Many problems take as long to describe as to implement, so you'll iterate a lot faster with two full stack developers focused on one feature each than a frontend/backend pair sharing two features. The only time having two specialists is important is if you have plenty of talent and projects are well separated. That's rarely the case, so a full stack developer should be significantly more valuable.