Here is a series of articles I wrote nearly 4 years ago commenting on the ICC Test championship and its associated schedule (to be read in sequence).
The "ideal" Test championship
The ICC's system - a rating or a Championship
Building a Perfect World Championship schedule
Analysis - ICC Vs PWC
Accommodating One Day Internationals
The reason I have put the link here? Because I heard that the BCCI finally want to play 12 Tests and 30 ODIs every year, that too with Major countries and don't care a hoot about the ICC Test Championship.
Can't blame India. Frankly, does anybody really care about the Championship which (as I pointed out 4 years ago) was a badly implemented idea (Like most things we have come to expect from the ICC).
I admit the "perfect" schedule I have proposed in these articles is far from perfect, but I came up with it one weekend on a excel spreadsheet. And didn't make millions of dollars for doing it either :-)