The phrase "brought in to open" typically refers to efforts made to initiate or kick-off a project or task. Antonyms for this phrase could include "closed out" or "completed," indicating that a project or task has been successfully concluded. Other opposing words might include "halted" or "paused," suggesting that progress on a project or task has been interrupted or temporarily suspended. Additionally, "put on hold" or "delayed" could be considered antonyms, since they imply that progress on a project or task is not moving forward as planned.