Running basketball operations is not a one-man game. Sean Marks is obviously the main guy, but he has two 30-something assistant GM’s — Jeff Peterson and Andy Birdsong — who work with him. The simplest (and admittedly not very accurate) way of delineating their duties is that Peterson is Mr. Outside; Birdsong Mr. Inside.
The two were named assistant GMs within days of each other back in the summer of 2019, replacements for Trajan Langdon who left Brooklyn for New Orleans, where he’s now the Pelicans GM.
Peterson is the more prominent of the two, his duties including amateur, aka college, scouting and acting as a “sounding board” for Marks on a number of issues.