Such incompetent manager (let's call him manager A) is in turn a part of his manager (one level above, let's call him B) "empire". B admitting that A's departme

Such incompetent manager (let's call him manager A) is in turn a part of his manager (one level above, let's call him B) "empire". B admitting that A's department is incompetent and is actually not doing much, and thus could really be disbanded, is not in B's interest, as it would shrink the size of his empire.