The second half of Major League Baseball’s season is just getting underway. For a batch of teams who either went to the playoffs last year or had such aspirations this October, that’s good news.

With a little more than two-fifths of the year, not to mention the July 31 trade deadline, still to go, both time and opportunity remain for such teams to try to turn it around by getting better performances, better health or even better players via trade.

Here’s how a quartet of clubs who have disappointed so far can improve and/or get back into the postseason race from here on out.

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