"Medical opinions are not needed." What will Putin do without Kadyrov?

The leader of Chechnya, Ramzan Kadyrov, appeared in front of the cameras after a long absence and reports of a serious illness. The occasion was the gathering between Vladimir Putin and the president of the United arabian Emirates, Mohammed bin Zayed al-Nahyana. Kadyrov looked tired, and this did not cut off rumors about his wellness at all. Would his possible departure be a major problem for the Kremlin, which has allowed it to regulation the republic with a firm hand for nearly 2 decades? What will Putin do without his loyal warlord?