The Tampa Bay Rays have done very well this summer in trades to bolster the big-league club, adding three useful players -- Adeiny Hechavarria, Dan Jennings, and now Lucas Duda -- without giving up any prospects they're likely to miss. For a team just two games out of both first place in the AL East and the last wild-card spot, they're making a quiet run for the playoffs yet aren't abandoning their long-term plans.