Fellaini is a DM, i agree this year he is playing as second striker, but i can't understand why some people are saying "he is not a DM"... He played as DM in standard de liège, and some years in Everton. He told himself that his best position is DM and that's the position he prefers to play. For the national team he played DM some years, and witsel was cam, winger, or cm. But now that witsel became a world class DM, fellaini is a cm for the team. He could be an upgrade to mikel's position in term of aerial balls, he is very stronger. He could deliver transition passes, but his passing rate is lower. He can add something, but i don't see him as a finished product yet.