But every head coach has different expectations of their players, particularly on what they should be doing on the sidelines. Yet, don’t expect Eagles coach Nick Sirianni to stop Brown from reading that book. In fact, he’s known about it for a long time now.

NFL purists say he should not have been doing that. Here are some other things he could be doing, although "watch the game" is not on this list.

"Inner Excellence," written by Jim Murphy, is a self-help book. According to its website, the book helps train your mind for extraordinary performance and live the best possible life. It helps you perform with freedom under pressure – all things Brown has done this season.