I know what you mean.. But when we need to cover CBs Kroos is doing that.. Look how is running back to the box to assist on defense... A job that is normally carried by Casemiro.. It is obvious that Zidane is having him track back tackle and intercept.. When Casemiro is there he is released from these duties.
Praise the Modric, bring that croatian ass in and solve the game like you did that one time (vs Man United?)!
I agree with you, but that is the problem. The guy playing there needs to be a ball winning midfielder, or if we don't want to play with one, then we need to play 2 man midfield.