BCCI's plan is long-term. Dinesh Karthik is now over 37 years old. He will be able to stay with the team for a maximum of 2 years. Rishab Pant may not be in good form now. But from now on, if BCCI cannot make Rishab Pant suitable for the Indian team, then the Indian team will be short of experienced players in the future. India has a lot of talented players. But there are very few experienced players. And so RIshab Pant played poorly in a few matches but BCCI is giving him ample opportunity to get back in form.