4. Selectors not willing to break the winning combination:
The team under Kohli has been performing brilliantly. They won a historic series in Sri Lanka and then thrashed South Africa 3-0 at home. They followed it with another convincing display in the Caribbeans. In the process, they also regained the number one rank in Test twice. With the team really doing well, no selection panel would be willing to disturb the winning combination.