Success on the field in 2026 isn't what the Washington Nationals are focused on . While that would be a plus -- and it hopefully would create some fan interest after that has waned following the decision to rebuild after winning the World Series in 2019 -- what this new regime is concentrated on is setting up this franchise to succeed for the long term. Constructing a flourishing farm system is at the top of their to-do list. That was one of the reasons why they decided to ship MacKenzie Gore out of town this past winter for a return package that brought in five top 30 prospects. It's also why CJ Abrams continues to be seen as a possible trade chip. But with the way their star shortstop has performed this season, dealing him is going to be a hard -- and perhaps unpopular -- decision. That's why the Nationals should seriously consider this seismic change that could transform everything when it comes to their future.…