SELECT "Manner of departure" FROM table_29478 WHERE "Incoming head coach" = 'Mohammad Khakpour'
What is the manner of departure when the incoming head coach is mohammad khakpour?
CREATE TABLE table_29478 (
    "Team" text,
    "Outgoing head coach" text,
    "Manner of departure" text,
    "Date of vacancy" text,
    "Position in table" real,
    "Incoming head coach" text,
    "Date of appointment" text
)