Courtesy runner in top of the 1st

[CecilOne]

Originally Posted by Dakota

If the FLEX (the pitcher on the submitted lineup) must face the first batter in the bottom of the inning, then she cannot be replaced before she does that, so the maneuver where the DP/FLEX is submitted on the lineup (with FLEX as F1) and then immediately the coach drops down to 9 players would be illegal. He could not drop down to 9 players until FLEX has faced the first batter. I don't agree that this is the proper reading of the rule, but literally it could be read that way.

The rule just says listed pitcher, not original listed pitcher, so that change before the player bats, would be legal. IMO
One of those "if it doesn't say so" rules.