Union Berlin which was leading table now at fifth spot hopefully they will also try to come back at top ranks even now it's tough time for them with they need to increase quality and performance which is not possible without few quality players, but surely things will be changed in coming days for the top ranks which is good.
I'm not sure about Union Berlin now, because when they were at the top they missed the opportunities that came their way with the sudden drop in form they showed. Just imagine that they declined in just a few weeks, causing them to be thrown into the position they are in now. Meanwhile, other teams are also in a better condition than they are now. Frankfurt, RB Leipzig and Freiburg actually managed to improve after not being as good at the start of the season as Union Berlin.
I wouldn't say it's impossible for Union Berlin to come back up, but it does require a bit more performance.