As a lifelong student of the game of baseball (83 years of age), I have an answer for the dilemma that has faced Mariners fans for the past few years.
Mike Zunino is a fine catcher who has had difficulty hitting at the major-league level. After intensely scrutinizing his swing, from all angles, I think I have the answer that has always worked in the past. Trade him!
He will probably hit .350 his first year out of the organization.
Don Rogers, Camano Island