Hail to the chief of staff

The title is suddenly everywhere. It can mean almost anything, says Jonah Engel Bromwich

There wasn’t an obvious position for me,” Scott Amenta said. Amenta, 30, was describing how five years ago he joined Spring, an e-commerce company so small that its employees could be counted on one hand.
 
Around that time, a mentor advised him to keep an eye on the nascent chiefs of staff in technology world. People in that position were seen as the next wave of founders, he was told. Reid Hoffman (the influential LinkedIn boss) had one! So did the Winklevoss twins! So Amenta asked to be named chief of staff.
 
In 2016, after toiling patiently in