There is an old adage when it comes to civil or criminal trials, which says if a person represents himself, then he has a fool for a client. It can be argued that when an NFL head coach tries to play the part of the general manager, the same can be said. Bill O'Brien (BOB), Houston Texans head coach, also doubles as the team's GM. His trades, even dating back to last year, have been dubious at best.
Below is the comprehensive list from Field Yates (@fieldyates):
As you can see, BOB traded away his best offensive player (Hopkins) and defensive player (Clowney) along with two first-round picks, and two second-round picks and got back older veteran players, some of whom (Cooks) have large contracts.