CANNON FALLS — Moving between the mound and second base at John Burch Park, Keith Meyers offered advice to his pitchers and assisted with drills during one of the final practices ahead of the state tournament. For the past three decades and then some, the baseball diamond has been home for Meyers, the Cannon Falls pitching/outfield coach, both as a player, a coach and a dad. Meyers, a Cannon Falls graduate, was one of the Bombers’ top pitchers d…