You spend time cleaning up the office. You know the cops will eventually start investigating the disappearances. You're not too worried because the cops probably would not think the people were transformed but you still need to make it look like you weren't involved. So you carefully replace the signs with generic paper without fingerprints and you search the entire office for any clues that need to be dealt with.
As you're doing this, you glance at Jeff's phone and notice it was set on speaker. You realize that the Dean did not call Jeff's phone three times. He called once but the speaker setting captured everyone in the room. You consider the possibilities since you don't have to dial a person at a time. You could sweep and entire room with the speaker setting. But would you want that many speedos? What would you do with them if you had them?