12/16/2020 School Committee hears reasoning for COVID-19 closures CUMBERLAND – Bob Mitchell, the town’s superintendent of schools since 2015 and before that the assistant superintendent who arrived in the district in 2012, will retire effective June 30, 2021. School Committee members and others last week commended Mitchell for his good work in Cumberland, saying he’ll be missed. They also hinted at the stress involved with the job, particularly during the pandemic. Mitchell said there’s still plenty of work to be done, giving the school board his word that he’ll continue doing the job at 100 percent to the end. He said he’s been honored to do the work, later telling The Breeze that he’s “just tired” and it’s time.