I am also a manager at a small rural hospital. I have probably been in management 15 of the 30 plus years I have been practicing. I always say I will not do it anymore, but end up in the management area anyway--my kids say its because I am naturally "bossy". Where I am now however is working out fairly well so Maybe I'll stay til I "retire" at 80 or so!!!
A good way I have found to catch future problems is to ask what they liked/disliked about their current/last job. If they can not say anything nice about anyone at any job--"they were all too hard to work with"--then stay away. There is usually someone/something positive at your job--I did say "usually"