Tell me Rugby Geniuses (lol) what caused Stade Francais to go from Top to Bottom

This has been debated , but it's really no debate.

The proof of the pudding is in the eating of it and the ingredients;

Heyneke Meyer

Morne Steyn

Willem Alberts

Lionel Mapoe

The once champions now bite the dust and the culprits dispersed.

PS Please note Organgrinder.

Enough said and case closed and filed away in the archives.

A very sad ending to a once proud great French Club.

(They were coming right in 2015 (Quesada era) but fell from French champions to regulation battlers and Meyer and his boys probably exacerbated the club once and for all) .

The stubbornness of Meyer ended them. When Meyer was Bok coach a reporter asked him if he had a plan B, and he said that Plan B was to make Plan A work. 

Meyer is about forward domination, his teams need to at least get 65% ascendency in this part of the game. If that does not happen he will lose. 

In 2015 it all started to unravel for the Boks. Older players like Alberts could no longer dominate the advantage line. Willie Leroux was the backline coach and playmaker in 2013 and 2014, but he lost form in 2015 and everything went to crap.

Meyer carried this plan A across to Stade Francais and was exposed as the same stubborn Bull with no plan B. He had the largest player budget in history to buy his own team, and even they never believed in the game plan. He was always a poor selector, and the chickens came home to roost. The likes of Alberts and Morne Stain should have been disposed off, but Meyer was familiar with these players as they would follow his game plan.

Just like at the start of Meyers era he was loyal to dummies like Werner Kruger and Dean Greyling making them Boks.