He also knows that Quirinius Quirrell was planning to go to Albania. With some compulsions on the DADA teacher, Albus would make sure that Quirrell would go to the forest, where Voldemort’s spirit was and let him being possessed. Albus would arrange that Voldemort would remain on the man and if John defeats him, then everyone would believe in the curse of the DADA position and John would be seen as a strong wizard again. Since the board had interfered with his precious school, the curse on the DADA position was nearly non-existent since there were too many DADA teachers on staff.