Unprofessional and unorganized and obvious they need admin/ executive support.
I was contacted for an interview last year and it was scheduled for nearly 2 months out. I tried to reschedule as I began a temp assignment and could no longer commit, because how could I possibly know what I'd be doing 2 months from when I first scheduled. Was told to use the a link that didn't work and the talent manager is unprofessional and condescending. If working there is anything like the hiring process, RUN!