I don't think two devs can always do what a biz guy and a dev could do. There are often things that "Business People" will do better by specializing. For exam

I don't think two devs can always do what a biz guy and a dev could do. There are often things that "Business People" will do better by specializing. For example, developing a direct, high-touch sales model. Most devs have little interest in that. So, a business guy is often good to have on the team there. (Hey Joey!)