I am working on a Responsive Web App. It provides summary across different verticals. To view details of a vertical user can drill down. So far the drill down goes till level 5. The Navigation for drill down within a vertical is a variation of a Breadcrumb.
Now, the need is to make changes so that the web app works fine on Mobile devices as well.
I found something similar on StackExchange Is there a better solution than breadcrumbs to cascading categories on mobile?
But I need something more.. Also, how should I proceed with the change?
[Edit 1 - Added Image]
[Edit 2 - Added Possible Solution] Breadcrumb menu does seem a rational option.