Bayern Munich have warned clubs off Robert Lewandowski and said they are wasting "no thought" on selling the striker this summer.
New Schalke coach Domenico Tedesco is not bothered by comparisons with Hoffenheim's Julian Nagelsmann.
Hitzfeld, who led Bayern to five Bundesliga titles and a Champions League crown, said the club would need to move quickly to secure a deal.
Klinsmann, 20, the son of former U.S. head coach Jurgen Klinsmann, will join the club for the first part of their preseason campaign on July 3.
Gab Marcotti and the FC crew debate the ever-evolving saga of Aubameyang, and if, or when he will move on from Dortmund.
Bayern Munich have been hit with a €15,000 fine after the club's fans set off fireworks during two away games this year.