It depends what you mean by 'youngsters'.
The players that are currently in the ODI team - Yuvraj Singh, Rohit Sharma, Virat Kohli (shouldn't be there in the first place) etc I feel aren't suited at all for the test game, at least for the moment.
Badrinath is knocking at the door and is about to kick it down, but the selectors seem to turn a blind eye every time he gets runs.
It's a tough task, playing Sri Lanka in Sri Lanka. Especially with the new factor of Mendis, even after reviewing his deliveries and such it must be hard to pick down there in the middle. We've handled everyone else decently well.
You've got to remember that Sachin Tendulkar, Sourav Ganguly, and VVS Laxman have all had good tournaments before this, and we can't kick them out after one three match series. Dravid has had a tough year, but still I feel is a dominant batsman in world cricket.
Even if the fab four call it a day, our dumb selectors need to pick the right guys to fill the enormous boots in the middle order.