From the linked SI article written by Jenny Vrentas, April 14, 2015:
The second interview focused on details, ranging from how Ryan would build his staff to how he’d assign seats on the team plane. When the meeting wrapped up, Whaley, Brandon, Pegula and his wife, Kim, met privately. This is our guy, they agreed. Don’t let him leave. Meanwhile, Ryan had turned on his phone and saw about 20 text messages from NFL teams, including one offering him a job, as well as several more texts from his agent.
Not that this is really new information, but as recently as April 2015, in the Pegula era, Brandon was functioning as an inner core advisor. He was one of only 4 people including the owners and the GM discussing, advising, and influencing something as important as the hiring of our head coach.
He needs to be fired. If we do indeed have a purge this off-season (or tomorrow!) and Brandon is still around whispering brilliant football ideas into Pegula's ear, nothing will be fixed.