I started a new job after being at home with my children for 18 years (I did some part-time during those years). Prior to kids, I did product development for seven years. I have an engineering degree and an MBA in marketing. I took a job 7 months ago at a small company and it's not a good fit (it's much more administrative than I expected and the boss/owner is nice but micromanaging). My question is how long should I expect to stay at this job before I look for another job especially since I had such a large gap. Also any advice on what to tell future interviewers why I left would be appreciated.