I take on the role of all 4 parties along with various other ones; I have my entire career. I still think there's something to be said for having specific skill

I take on the role of all 4 parties along with various other ones; I have my entire career. I still think there's something to be said for having specific skill sets. A great designer will usually design a better site than me; a great frontend developer will always churn out more elegant Javascript more quickly. As they say, a jack of all trades; a master of none. It probably doesn't take 4 people to build most web apps, but could 4 people have done it better? I think that's the real question.