Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Washington (CNN) Immigration enforcement is crippled by mismanagement and lack of clear training even as President Donald Trump seeks to increase deportations, a new report out Thursday from the Department of Homeland Security inspector general says. The inspector general's report, which focused on the deportation of undocumented immigrants who are no longer in detention, said that without fixing the issues, DHS will not be able to support the Trump administration's aggressive pursuit of undocumented immigrants. "These management deficiencies and unresolved obstacles make it difficult for (Immigration and Customs Enforcement) to deport aliens expeditiously," the report said. "ICE is almost certainly not deporting all the aliens who could be deported and will likely not be able to keep up with growing numbers of deportable aliens."Trump issued executive orders to vastly increase the detention and deportation capacity of DHSThe IG dinged ICE for not having "well-defined policies and procedures" 
 Question:Field office staff confirmed that _'s available policies and procedures did not help them properly manage their non-detained cases."

Immigration and Customs Enforcement