I can't find a pulse

Corridor update: The big boss called all the smaller, big bosses into his big office and had a big talk with them. Apparently he's worried about the number of people who are leaving the company. Let me put that another way: he's worried about the droves of workers piling out of the doors. He's so worried, he's decided to put on his caring hat and declared that he intends from now on to "keep his finger on the pulse". Pulse? What pulse?