Hiring for expertise and personailty is a tough set of skills to pair. Reminds me of software I had to work with where you had to have accounting and database skills. Nothing mutually exclusive there, but it's tough to find people with both.

Best you can do is layer it. HR does a quick call to see that you're not an antisocial asshole, maybe something a tad more in depth later, passes to the team's management to go forward.

My last employer did quite well. I sat a 2-hour interview with the whole team. Yes, we got breaks, and as much as anything, that sold me on the job. "The job is very human." And it was! Great company.