On the edge of buying or selling, they could theoretically still trade Kirby and compete. What a Cubs trade for George Kirby would look likeFirst, they’ll need to decide if the Cubs have enough they can send them. The Cubs need to prepare to give up some significance even if Kirby isn’t having a sensational season. Why this trade works for the MarinersJames Triantos is crucial to this trade. There's also another, bolder scenario: the Mariners immediately use these players in a separate trade to bring them a need.