Offensive tempo and rhythm are big. If you watch film of the 2016 offense, in addition to all the pre-snap stuff, misdirection, changed-up blocking schemes, etc., Canada changed the tempo a lot. He'd go shotgun no-huddle for a series, then put Nate under center, bunch it up and run power or short passes in the soft spots in the middle of the field. He mixed up shotgun sets and under center sets all game long. he mixed in spread elements and pro-set elements. Everything he did was designed to keep the D off-balance and on its heels. Honestly it was a machine. Watson? Zero creativity, very predictable.