I feel there is a difference.For me Kroos is definitely the better passer between the two and certainly has more vision while Gundogan is quicker and is the better defender and dribbler.,Gundogan obviously is also a fantastic passer but kroos edges it for me. On Kroos not controlling enough games,Just ask any Bayern fan and He'll tell you how important Kroos has been to their possession based game.Bastian has been injured most of the season and Thiago has also struggled with injuries while Martinez has not played a lot this season in midfield.Bayern are at the top of the league because Kroos and Lahm have controlled and dictated the midfield in pretty much every game.