Gov. Carney’s effort to bring his Wilmington Learning Collaborative to life seemed to be on its way to gaining the backing it needed to launch.But a review of the memorandum of understanding that will guide the three school districts serving city schools as they seek to transform Wilmington’s underperforming elementary and middle schools is seeing pushback from district school boards.Contributor Larry Nagengast examines the issues that have emerged and if they could delay or derail the collaborative.