Alexander's affidavit basically explains the circumstances of why the grad assistant accompanied Shannon and Harmon to KU and rebuts some of the grad assistant's affidavit about Alexander and Frazier checking in on them the whole time.
Whitman's affidavit is about UI's process and what they knew and when.
In any case, based only on my quick skim of the documents, I don't think anyone should be laboring under the assumption that Whitman and the UI are in cahoots with Shannon on this filing.