Jawa- An overconfident failure? Why didn't they go with JV first like triumph and others did as much safer move?

Once tagged as 'Royal enfield killer', but now struggling to survive. Suffering with quality issues, poor service and negligible sales, Jawa went all wrong with everything they did. Why didn't they go for joint venture first with already established company to make more reliable and vfm product like triumph did with 400 series?