Having upper management understand anything about how social media marketing works behind the scenes would have been helpful. Having upper management understand how time-consuming and difficult content creation is without a social media marketing management tool would also be helpful. You'll be expected to manage 6 (technically 10) accounts manually and individually. Engagement doesn't just skyrocket in a month.
Advice
Expect to put in about 35-40 hours worth of work within 12 scheduled work hours in order to output management's desired expectations.