Your responses to Questions 2 & 4 indicate a bias/preference for Kepler over Rosario. I'm a big fan of Kepler, but if you're willing to trade Rosario, why not be willing to trade Kepler? The age difference is about 1.5 years, so if that's the basis for the trade willingness/2020 lineup, OK - Kepler will be younger in 2020. For comparison, here are their career numbers. They are presented year by year, but if you want to compare age by age, you can shift Kepler's stats up one line mentally. I'm just curious as I think Rosario has been and will be better than Kepler (though I have hopes for somewhat of a Kepler breakout in 2018 just as Rosario broke out in 2017). Year Age Level PA BB SO BA OBP SLG OPS Rosario/Kepler 2010 18 Rookie 213 16 28 .294 .343 .438 .781 / 17 Rookie 153 13 27 .286 .346 .343 .689 2011 19 Rookie 298 27 60 .337 .397 .670 1.068 / 18 Rookie 221 23 54 .262 .347 .366 .714 2012 20 A, Rookie 449 32 71 .299 .347 .499 .846 / 19 Rookie 269 27 33 .297 .387 .539 .925 2013 21 AA, A+ 544 38 96 .302 .350 .460 .810 / 20 A 263 24 43 .237 .312 .424 .736 2014 22 AA, A+ 370 21 73 .243 .286 .387 .674 / 21 A+ 407 34 62 .264 .333 .393 .726 2015 23 AAA 100 5 17 .242 .280 .379 .659 / 22 AA, A+ 508 69 68 .318 .410 .520 .930 2016 24 AAA 169 7 25 .319 .343 .538 .881 / 23 AAA 128 16 14 .282 .367 .455 .822 2015 23 MIN 474 15 118 .267 .289 .459 .748 / 22 MIN 7 0 3 .143 .143 .143 .286 2016 24 MIN 354 12 91 .269 .295 .421 .716 / 23 MIN 447 42 93 .235 .309 .424 .734 2017 25 MIN 589 8 35 106 .290 .328 .507 .836 / 24 MIN 568 47 114 .243 .312 .425 .737