Sevilla's performance is still very far from expectations but saying they will move to Segunda Division is too hasty in my opinion.
Currently Sevilla's performance is unpredictable because they can immediately play very well and shoot up at least to secure their position in the middle standings like last season so even though now they are still playing not too well but saying for sure they will go down the caste and leave La Liga I think this is still too hasty because after all their focus is currently only La Liga and we know their characteristics when only focusing on 1 competition.
There is still half the season and I am quite optimistic for Sevilla they will crawl up from their current position. Sevilla is a big force in La Liga and even though they are currently in a place where they shouldn't be, that can still be resolved well in the future. They just need to avoid the relegation zone and must regain their confidence to win. It's not easy when a big team continues to experience things like this every season and they have to provide the best results for their fans so they can still watch them compete in La Liga next season.
Improving the squad is the main focus that they must complete because the current squad is still deemed incapable of stabilizing results. Management needs to take action and not be too late so that it is difficult to catch up with other teams who are above them.