Systems can co-exist:
Tackk's Lead Developer talks change
Recently, Pasto wrote about a new system he's building for Tackk, and why good ideas and focus are the backbones of being successful.
Snippet from Ryan's post:
"This was the day I started implementing a new api.js file into Tackk. It marks the beginning of a new system within our codebase ... With so many obvious benefits that it would be foolish & lazy to not implement this new idea. But the question must cross your mind: 'Is the juice worth the squeeze'? Why do this now?"