Achievement seems to be connected with action. Successful men and women keep moving. Just think why your beloved leader is leaving after all having such a good position already. He surely knows that disaster is on the way sooner or later.
How do geese know when to fly to the sun? Who tells them the seasons? How do we, humans know when it is time to move on? As with the migrant birds, so surely with us, there is a voice within if only we would listen to it, that tells us certainly when to go forth into the unknown.
You cannot stop what's coming but know when to fly and take right action.