Instruction trends come and go. In the 90s, a big one swept onto the scene. The idea that golfers should keep their trail knee—or right knee for right-handed golfers—bent on the backswing.

After an extensive search to find a new right-hand man, Hovland is in lockstep with swing coach, TJ Yeaton. The two have charted a new path back to the top of the golf world. Now, all Hovland has ...