Albus wasn’t even able to use Doloris, because she was also distrusted by the minister and the Malfoys managed to put a wedge between the minister and his undersecretary. This meant that Doloris wasn’t as influential as before. The woman started to lash out more and this would lead to more distrust. Doloris Umbridge was losing a lot of influence in the Wizengamot and the ministry and her blackmailing wasn’t working like in the past. She was also barely hanging on her job due to her temper and Albus wasn’t sure, if the woman was going to have her job.