Few people know Josh McDaniels' offense better than Bill O’Brien. He's bullish on what Drake Maye can accomplish in it.

The next two years, he coached on defense before being promoted to quarterbacks coach under offensive coordinator Charlie Weis. McDaniels was part of the Patriots first three Super Bowl titles.

Historically, we’ve seen this sort of attrition lead to different approaches. The 2005 Patriots lost Charlie Weis and Romeo Crennel, and replaced them with young up-and-comers Josh McDaniels and ...