It looks like the buildup to appoint a domestic coach has already begun

Moreno's performance wasn't great, but they are blowing up rumors of discord within the '96-born players' group, with the media reporting on it daily and highlighting Moreno's flaws. Ultimately, they are starting a narrative that a domestic coach who understands the players and internal affairs is necessary to make the team a "one team" again. They'll likely run the Asian Cup under a domestic interim system, and if the results are good, they'll just appoint them as the permanent manager... If it's a more cunning strategy, they might stick with Moreno until the Asian Cup, then incite conflict among the players so that when the results fail, they can claim a domestic coach is needed, following the route of appointing a second Hong Myung-bo... Korean national football will continue to be a "frog in a well," with people just dividing up the spoils among themselves until it loses public interest and settles into a level of recognition similar to volleyball. Meanwhile, Japan will become completely untouchable, and as China and Southeast Asia rise, we'll be fighting bloody battles just to try and make it to a World Cup with them.