Originally Posted by dougdirt
And their returning bullpen posted a 2.84 ERA last season without Chapman. Removing Chapman from the bullpen would also not be creating any kind of problem.
As the author noted, nothing happens in a vacuum.
One can't assume that with Chapman removed from the pen, those same relievers would put up the same numbers. Their roles would be different, they would be pitching not just more innings, and facing more batters, they would be pitching different innings, facing different batters, in different situations.
We have no idea how they would pitch if Chapman wasn't their as the closer.