Dillon Maples got caught up in the numbers game.
It's that simple.
Carl Edwards Jr. proved to the Cubs he was ready to rejoin the bullpen and Maples was the clear option to go back down to Iowa in a corresponding move. On the one hand, Maples and Kyle Ryan are the only relievers on the current roster with minor-league options remaining, but the Cubs also want Maples to go down and get more regular work to continue his development.
Maples spent 10 days in the big leagues but made only 3 appearances, during which he showed his incredible potential (6 strikeouts, 0 hits in 2.