Implement universal DH
I'm sorry, Dad, but National League baseball is plainly inferior, and it's only a matter of time before MLB tacitly acknowledges that fact and implements the long-overdue universal designated hitter. As a group, pitchers hit .128/.160/.162 in 2019; Orlando Arcia, the majors' worst hitter to qualify for last year's batting title, slashed .223/.283/.350. Pitchers can't hit, and forcing them to do so makes for a less entertaining game.
That truth has been self-evident since the American League first adopted the DH in 1973. It's even more glaring in today's game, wherein analytics and deepening bullpens have all but eliminated the one occasionally tough decision at the heart of the "But strategy!" argument to which National League apologists cling: when to remove the starting pitcher. The sporadic moments of tactical theater that NL baseball provides aren't worth having an automatic out in the everyday lineup in lieu of an actual hitter.
Moreover, forcing pitchers to hit (and run the bases) - which, nonsensically, they don't do at any professional level until the majors - exposes the game's most injury-prone group to further harm. Last year, for instance, Washington Nationals ace Max Scherzer broke his nose after bunting a ball off his face in batting practice. Meanwhile, Mike Soroka - the Atlanta Braves' National League Rookie of the Year runner-up - was forced from a midseason start after two scoreless innings because an errant fastball hit him in his throwing arm. Allowing pitchers to hit for themselves is ultimately lose-lose - it's both agonizing to watch and needlessly risky for pitchers. The sooner MLB frees all of them of that obligation, the better.
Eliminate the challenge system
It's stunning that baseball's challenge system still exists given how inefficient and demonstrably dumb it is. You know the drill: An umpire makes a sketchy call, then the manager of the team victimized by that supposed error in judgment stands on the top step of the dugout for up to 30 seconds awaiting word from the video room as to whether or not he should challenge.