Sherpa Clinical Packaging interview questions

I submitted an application and received a phone interview within 2 days. They asked about basic background information in the call. I then received a phone call a couple of days later to setup an interview a week later. The interview was with 3 different people the marketing manager, sales manager, and HR. The interview took a couple of hours and was pretty straight forward with questions and process. After that I received another phone call for a follow up interview with just the marketing manger which was a week later. The interview went well and was just more in-depth questions to learn more about me.

HR phone screening. In-person interview with VP of Operations, Marketing Manager, and HR. Then a follow up interview with the Marketing Manager. This progress took about 3 weeks. Heard back about 3 weeks later. Dissatisfied with the lack of responses to follow-ups and the lack of enthusiasm from interviewers.