"What we want to see from Julian is obviously that he get more minutes on the field," said Klinsmann.
With deadline day approaching, ESPN FC's European correspondents assess their side's business so far and suggest what else needs to be done.
Werder Bremen have said they have reached an agreement with Arsenal for winger Serge Gnabry and that Bayern Munich will not be involved in the deal.
Leipzig picked up a 2-2 draw at Hoffenheim in their first ever Bundesliga match on Sunday, with Marcel Sabitzer scoring a last-minute equaliser.
Schalke are closing in on the signing of Sevilla winger Yevhen Konoplyanka, sources close to the club have told ESPN FC.
Bayern Munich have been handed a boost with the news that Douglas Costa is closing in on his comeback from injury.