The mere presence of Virat Kohli on the field seems to precipitate matters. First, he thrust himself on to the course of the game in ODIs and Twenty-20s. Now, 20 Tests old as captain, he has brought this frisson to the longer format too. So much so that every day of a Test when he is captain feels like an ODI, every session like a T20 game. That’s because during his short reign he has picked a different XI for each of these 20 Tests. In short, no combination has played in any two matches under Kohli. The objective is two-pronged: to keep the oppostion guessing and to stick to a ‘horses-for-courses’ policy. Circumstances, of course, force changes, like in Mohali last week, when Parthiv Patel was dramatically recalled to the Test team after eight years following Wriddhiman Saha’s injury.