Specialization actually isn't a bad thing. I'm the CTO of an AI company dealing with some very complex problems. I've even written an oreilly book on deep learning. I tell you this for perspective.
I can't design for crap. I don't understand the thought process and don't even want to put cycles in to trying. It's not time well spent.
I'm also an enterprise founder. I don't mind wearing a suit selling to folks who have obscene requirements with 6 month to year long sales cycles.
I don't understand B2C companies at all. I could never run one. The idea of catering to hundreds of millions of people with none of them paying you while relying on VC to scale blows my mind. I feel similar about small business.
I like the idea of a smaller number of big name customers with large requirements. I also understand how they work: They are for profit organizations trying to make money or cut costs. I see consumers (despite doing a ton of data) as a blob of irrational behavior I don't want to deal with.
I also can't do marketing. I can kind of write when needed but my main focus is on technical content or specialized pitches.
Being on HN is very similar to being a founder, you see everything and wonder how the people around you do what they do.
Don't worry about it! You hired them for a reason.
Hope that helps!