Adding onto this: Bring back groups only working with one or a group of producers, whether international or Korean (the examples in my head are all Korean, Onf has Hwang hyun from Monotree, Stayc has Black eyed Pilsung, Zb1's last few singles had Kenzie, etc.) Many labels throw their groups' discography to the wolves hoping for something trendy, like the short duration of songs we're seeing, without thinking on what they can do better. This doesn't mean groups' discographies can't be consistently good, but we know they can be consistently great, and the fact that labels nowadays only want to work with big names instead of up-and-coming producers within the country (or outside) just shows how many executives don't care. K-pop gets the leftovers from the West now (we can argue they always have, but I like to think it wasn't a problem since the both the demo and the song were developed, thinking Run Devil Run and Juliette), not music tuned to a group's image (or image tuned to a group's music), and that should change.
Holy ramble.