If Ten Hag didn't perform. Why do they need to keep him much longer? They never achieved good results under Ten Hag, and doing part ways with him is most probably best solution they can take. Are you thinking club should sacrifice themselves just to give Ten Hag more time? 
It's about to find someone who perform at Leverkusen, not someone who can bring them to the relegation zone.

I support them to sack Ten Hag if he doesn't perform. Think about their club, mate, not their coach. It's bad if they keep missing more and more points everyweek.