I have a feeling that Natarajan would make an excellent pace bowling duo with Jasprit Bumrah. Saini is too inconsistent, and he always attempt to bowl as fast as possible, rather than trying to maintain good line and length. He is very expensive, especially when playing against good teams such as England and Australia.
I never liked Saini's bowling from the beginning, but many posters here appreciated his bowling. I feel there are better alternatives out there.
I like Saini as a bowler and i think he could do very well in the international cricket. May be it would be good if he's training under likes of Dravid or Zaheer so that he could learn to keep his emotion and raw pace in check otherwise Virat's influence could turn him into another Umesh Yadav in the limited over cricket.