You want to use your closer and set-up man with a 6-0 lead? Not sure what baseball you are watching...
Graveman has never pitched in the playoffs. This is perfect to get his feet wet with a big lead. And as you can see it’s a little bit of trouble for him
The setup man is the 8th inning. That’s graveman. That’s been his role since he’s gotten here Tight situations isn’t what your post said that you referred to.