On that Saturday afternoon three weeks ago when power-sharing and good sense returned to Stormont, the DUP sprang a surprise on their partners, Sinn Féin included. The Shinners exercised their right as the largest party to first pick of government departments by taking the economy portfolio. Then it was the DUP’s turn to choose.  Jeffrey Donaldson’s party was expected to put Gordon Lyons into the minister for finance role, a position he had filled before. Instead, the DUP decided to take responsibility for the Department of Education. The other parties were flummoxed. What were the Dups up to? Sinn Féin…