Groenewegen was faster enough this season to win more than 10 victories, but he is the star rider of his team (alongside Roglic) so he usually goes to races with other top sprinters, and despite that he is not bad at positioning, he lacks a last leadoutman like richeze, Sabatini, Kluge, Mezgec, or even Laporte, Guarnieri, Zabel...
It´s quite usual to see Dylan starting his sprint a bit early, to far back or simply tired after being on his own during the last Km. He has decent helpers in Roosen, leezer and Wagner (he was stronger years ago) but they are not explosives enough to be the last man of a top sprint-train, maybe Amund Jansen or Van Hoecke could possible make it in tje next years.