Your the guy who supports one of the old firm, so i would suggest its you that hasnt got a clue.
McLeish while managing Motherwell split the old firm, a remarkable achievement.
He won the treble with Rangers and won the league the year after beating Martin O'Neil who is regarded as a great manager. He did it with a lot less money to spend.
He beat France as Scotland manager, in France.
Its just delusional to suggest he's not a good manager when his record would suggest he's an excellent one, far better than Martin O'Neill or Walter Smith.
Statistics prove otherwise.
He would never go back to Rangers though, he's too good for them, they would never be able to afford him.