Managing a baseball roster is equal parts planning with what you have and managing the unexpected. A time or twelve each season, that means shuffling the deck due to major injury, and despite the best laid plans, it sometimes happens due to players simply not living up to their expectations.
You plan as best you can with the best you’ve got, and then react with contingencies as quickly as you can when a curveball gets thrown your way.
The Cincinnati Reds and GM Nick Krall are planning to have Luis Castillo parked atop their rotation for the 2021 season, and beyond.