BRUSSELS — A long-stalled reshuffle of senior roles within the European Commission is taking place, thanks to an internal workaround that allows a key official to move from her current post. As first reported by POLITICO , movement in the upper ranks at the Commission had not proceeded as anticipated because there were not enough roles for all the top officials to move to. At the center of the reshuffle is Sabine Weyand, head of the Commission’s powerful trade department (DG Trade). According