Deprovisional Series

I have been playing ranked a lot more this season. And the main thing i have been having problems is dropping.( like most people) So I had this idea going through my mind. It's called a Deprovisional Series. Once you hit 0 lp after losing your last bit of lp in that rank ( Not Right after Promoting ) between ranks 4-1 you go into deprovisional series. In which you have to win 2 of the next 3 games to stay in your current rank. If you don't you will be dropped.