Frankfurt has loaned out Rafael Borré to Werder Bremen at the beginning of this season. After difficulties at the beginning he scored four goals in 13 games so far. Werder Bremen would like to keep him until the end of the loan period in the summer. But it seems that International Porto Alegre from Brazil are interested in him. Should Frankfurt decide to sell him, Bremen are in desperate need of a new striker.
When talking about Werder Bremen, this team is still in a difficult stage at the bottom of the table and if they lose Rafael Borré of course it will make their current position even more difficult. The lack of striker options will cause Werder Bremen to experience a decrease in goal productivity and even though Rafael Borré is not good enough, at least his presence can cover Werder Bremen's needs. Now as a precaution they have to look for new striker options because the January transfer window has opened and it is unlikely that with the remainder of this season they will finish at the bottom of the table again. This will make things worse again if they fall into the relegation zone and as a seasoned team in the Bundesliga they have to survive every season.
The management definitely does not want to open up unnecessary number of new problems. Just as you wrote, the teams performance is just such that they could keep some distance from the relegation zone. However, they must use the transfer period to strengthen theier team.
Another problem for Bremen is the Africa Cup. Although only Naby Keita will be missing. But he has only played 80 minutes so far due to injury. And Bremen have been hoping more from him.
Since the beginning, Naby Keita's arrival actually won't make the team much better because this player is prone to injury and that's why Liverpool let him go. I think whether Naby Keita is there or not, it won't reduce Werder Bremen's performance and maybe it would be better for Werder Bremen to also prepare another midfielder so they can concentrate fully on the remainder of this season.
It's not easy to be a weak team in the Bundesliga and they always have to achieve it by finishing at the bottom of the table. This is certainly not good and management tries as much as possible to take advantage of players who are free agents if basically their finances are not sufficient to buy players. It's really ironic for a team that was once great in Germany and now has to experience difficult times in the Bundesliga without knowing when they will rise again.