I was contacted by a recruiter via LinkedIn. There seems to be a major disconnect between their recruiters and hiring managers. They reached out to me, set up a phone interview, and then never got back in touch with me. I had to email the recruiter for an update and all she could tell me was she had not heard back from the hiring manager. You should not contact people and waste their time with a phone screen if you are not even going to follow up and give them a yes or no.