The Seattle Mariners have a nice core of young talent around which there will be much optimism this offseason. ... When the Brewers built a young core and made it to the playoffs in 2008, it included Prince Fielder and Ryan Braun. When the Phillies put together a young nucleus of offensive players that led to five straight division titles, it included home-grown stars such as Chase Utley and Ryan Howard. None of the young Mariners projects to be an impact bat in those molds. The best comparison to what the Mariners are doing is what the Royals have done over the past few years. ... The biggest disappointment has been third baseman Mike Moustakas, whose free-swinging ways have zapped his power and exposed his weaknesses to major league pitching. He's yet to be even a major league average hitter and is on the verge of becoming a role player. ... After the 2011 season, there was optimism in Kansas City that mirrors what Mariners fans have right now. Hosmer was coming off a strong rookie campaign and that power was just sure to develop. Moustakas had made it to the majors and even though he struggled, he showed enough potential to get excited over.