"For instance I recently joined a project that was built by devs coming up to speed on React. And boy did they abuse Flux, they didn't build a store for every drop-down but it's pretty damn close. However I really think a React Guru could have steered them around this mistake with just 30 minutes of his time.
"
The trouble here is that the guru or consultant who comes in needs to understand the context of the problem, which can't be done in 30 mins.
we have a lot of architecture consultant companies which provide these services already.