Startup Idea : Android Game . Basketball Manager.

I am fan of football online gaming. Top eleven. Maybe the greatest game. But I also love basketball. But nowhere i cant find anywhere similar to this Basketball manager game as top eleven. All basketball games looks like crap. So my Idea is to make similar specification as top eleven game. Game doesn't require some high graphics system technology. So it will be very fast at developing testing , beta testing and releasing out. Very high revenue , true profit, expectation. After one year of released game it would generate from 200.000-3000.000€. profits. Not counting the advertisment from what google is offering. But peoples purchase in the game. So everything is kinda basic and easy.