We already know what this year's postseason is going to be about: Relievers. So, so many relievers. Over the past few years, we've seen how much the game changes in October -- with short series and extra days off -- allowing bullpen arms like Andrew Miller to exert outsized influence on a series. With the "opener" and "bullpenning" becoming more prominent than ever in 2018, you can expect to see more and more relievers in big spots than you could have ever imagined.
Teams know that, which is why most contenders have loaded up on as many short-relief arms as they can find.