We should not underestimate the significance of the 15 Departmental votes of no confidence in Chancellor Wise (and those above her) at UIUC. When parliaments pass motions of "no confidence" on which such votes are modelled, they are declaring that those in command are no longer fit to hold office, and governments fall. These are, therefore, very strong statements from these Departments. Such votes of no confidence in the senior managers of one's own university are rare. Fear of retaliation by one's bosses is an obvious explanation. Another explanation is that even if one strongly opposes someone's actions, one might not think they rise to the level of a resigning offence.
It may not surprise many that the Department that voted to hire Salaita (American Indian Studies) passed a motion of no confidence, or that all the other Departments in the Race, Ethnicity, Indigeneity, and Gender grouping joined them. But I was surprised to see how far beyond these Departments the votes of no confidence have radiated. Philosophy, for example, does not spring to mind as a natural ally of Race, Ethnicity, Indigeneity, and Gender. But they were one of the first to join AIS in voting no confidence. It's also significant that two Departments in large and traditional disciplines -- English and History -- passed motions of no confidence.
The Departmental votes of no confidence haven't yet extended beyond the College of Liberal Arts and Sciences. But they already extend a fair distance within that College, which is at the core of the University. It was, recall, a vote of no confidence of Harvard's equivalent Faculty of Arts and Sciences that led to Larry Summers's resignation. The vote against Summers wasn't overwhelming: 218–185. And, significantly, it was by secret ballot of all members of the Faculty, with no individual Departments having to put their necks on the line.
Members of the College of Liberal Arts and Sciences have an especially strong grievance against their Chancellor, given the manner in which she bypassed their Dean, in violation of University Statutes. (See link in first comment below.) It is not over yet. Let's hope that there are more Departmental votes of no confidence to come. Perhaps we are not far from the point where the level of no confidence among LAS faculty in Chancellor Wise reaches that of Harvard's FAS in Larry Summers.