The Borussia Monchengladbach coach will take charge of BVB from the end of this season and is in constant contact with his new club.
BILD says Rose has been informed of BVB's transfer plans this summer and has accepted the decisions made.
Erling Haaland will not be allowed to depart this summer, however Sancho will be transfer-listed and sold should the right offer arrive. The England midfielder continues to be linked with Manchester United.
Dortmund must make sales this summer to help balance the books.