Sure, but if he were to have a 100% success rate with all the players he encounters he'd be the messiah. Needless to say he's managed to steer the club to a record EPL points total, two trophies, a place in Europe, and also (take note Steve Parish) increased the market value of virtually all of our first team, through success on the pitch and by nomination for international duty. Olise, French international, plays for one of the best teams in Europe now, Eze, England international, plays for the best team in England now = over £100m for those two alone. Mateta, now part of the French team, Wharton, selected for England. Guehi, England's number 1. All players who have improved under Glasner's guidance. When I think of previous managers I can think of some players going backwards, none improved.
He'll go, and Parish will have to think long and hard why he didn't back the club's most successful manager to the hilt.