I think the era of toppling governments died with IG. There have been certain attempts made over the years in different states with different degrees of success enjoyed but by & large ever since the SC intervention & landmark judgement in the Bommai case, that trend, though tempting, has seen to be yielding diminished returns.
Case in point - In Karnataka a decade ago, when Kumaraswamy scuttled BSY's CM aspirations, in spite of an understanding, the electorate resoundingly provided their mandate in favour of the BJP in the next elections. It's another matter that BSY screwed up badly.
I sincerely hope, the BJP desists from such maneouvres in Karnataka, Rajasthan & MP & let's the coalition in all these States unravel on their own. Frankly, Ashok Gehlot enjoys a much better reputation than VRS in Rajasthan as far as an administrator goes.
Kamal Nath too enjoys a reputation as a doer too, though he belongs to the age old Congress tradition of being a wheeler dealer. That would be the BJP's cue to be alert enough to ensure he's caught with his hands in the cookie jar.
The bottom line is Indian States need a decent set of administrators, be they from the BJP or Congress or any other party.