That most decorated manager does the same thing at every club he joins. He starts his job, wins a trophy or two and then pisses off players, staff and/or board members resulting in his club dropping down the table and getting the sack and a huge pay out.
The board extending his contract was one of the most ridiculous business decisions I've seen at club football, everybody could see this happening a mile away.
Zidane will do fine as long as he's given time. It's going to take him a while to get used to the pace and physicality of the Premiership. Pep had the same problem in his first season.
Hopefully Ollie will start United playing decent football again and let our players off the leash.