Cardinal Health interview questions

Submitted my resume for a position that was a good fit. Initially contacted by HR/recruiting. HR set up a phone screen that went smoothly. About a week later, I then interviewed with the hiring Director, which went well. HR promptly contacted me and said it went well and I would proceed to a third round. About a week later I had three interviews scheduled with three different Directors. All of the interviews with the Directors went well, perhaps one went very well based on the feedback from that Director. I sent "Thank You" emails to everyone involved in the process. After more than a week, of waiting to hear next steps, I sent an email to the HR recruiter, expressing my interest in the position and that I would be happy to provide references. The HR recruiter never returned my email. I never received any kind of follow up whatsoever. One would think if you spent about 6 hours interviewing, the company and HR would have the professional courtesy, at the very least, to say "thanks, we went with another candidate". Like many others, if they are that unprofessional in the hiring process, they have little regard for their people, it is not a place I would want to work. I would have rated this experience as "positive", even if I didn't get the job, had the HR recruiter contacted me to close the loop.