basically, now the patriots have a system of one-word play calls that tell everyone what they need to do. formation, blocking scheme, shifts, snap count, alerts - everything for a play in one word. belichick learned it from chip kelly who has mastered it in college. faster than any no-huddle offense we've ever seen in the pros.
there is also a section discussing how everyone has used one-word play calls in the past such as "CLOCK" the universal call to spike the ball. when CLOCK is called, everyone knows where they should be lined up. so the patriots take it a step further
But that was the extent of the Patriots' quick verbiage with shortened play calls.
Why didn't anyone think of taking the next step to extend those calls to an entire offense?
Well, Hall of Fame coach Bill Walsh did. In his seminal out-of-print book Finding the Winning Edge published in 1998 — Belichick has called it the coaching bible — Walsh had a section on page 308 titled, "Determining the Future Dynamics of Offense in the NFL."
First bullet point: "Teams will huddle only when the clock is stopped."
Second: "Teams will use single-word offensive audibles."
Bill Walsh - still the master