I love the challenge system in Triple-A.
At the Major League level, if you argue balls and strikes, you immediately get ejected from the game. It doesn’t matter how wrong the call was. It doesn’t matter that we have the technology to see instantly what the correct call should have been. The rule of the umpires at the MLB level is near infallible.
At the Triple-A level, the challenge system allows for an instant and efficient review to ensure the important pitches get called correctly. The pitcher, catcher, and batter can challenge any pitch. A team gets as many correct challenges per game, but can only miss three times.