Originally Posted by Caveat Emperor
A better pitcher.
He's one arm injury away from being the #4 starter, where I'm sure his numbers compare less favorably.
You can never have too much starting pitching. Never settle for mediocrity anywhere in the rotation when you can have better.
His park-adjusted ERA is just a hair under league average, which includes all starters. So being a 4th starter is still pretty suitable to his talents.
The Reds don't need another starting pitcher. They had the best ERA in baseball this year. You're trying to insinuate there's a problem where none exists. That's not "settling" but rather recognition of a club strength. Naturally any team that has to use its 5th starter in the playoffs might have a drop-off. But clubs shouldn't invest extra resources into a 5th starter they don't have on that premise alone.
In this case, it just so happens the Reds do have a natural upgrade (Chapman) if they elect to pursue it. And I hope they do because Chapman could be a game-changer. That said, if they elect to keep Chapman in the pen, there's no reason to invest resources through trade or free agency to a position where there are no actual weaknesses. And no, I do not consider a league-average pitcher as a 5th starter to be a weakness.