What Rubbish, you are comparing 9 seasons of being manager of Rangers to 4 in McLeish's case and 3 seasons with Advocaat, even half a season with Le Guen.
Thats like someone flipping a coin twice and getting heads twice, so in theory getting heads 100% of the time, compared to someone flipping it ten times and getting heads only 3 times, so only 33% and then the first person claiming they are better at flipping a coin because of this
Stats are easy to use for either side of alot of arguments, and whilst important, you have to take in other factors before just throwing them out there and coming to conclusions.
Anyway you've chosen those 5 managers, what about the rest of our managers? John Greig, Willie Waddell, Davie White, Jock Wallace, William Wilton, Souness? If you are making comparisons, be fair and compare the whole lot, not just 4 most recent and then a manager from over 50 years ago, wheres the sense in that? Even then you'd have to look at the amount of time in charge, Struth with an amazing 34 years, Souness 4 seasons etc.
Walter Smith the clown? Aye right.