They seem to have this "want it instant" attitude, which doesn't work in the EPL, or football in general.The analytics part made me laugh the most.
I'd wager if you looked at Chelsea's stats, they were good all season long but took the players a while to begin converting.
Upper management blaming a manager for a team's perceived underperformance when the guilty party is themselves for putting the squad together is a tale as old as time.
Look at Man City, even with their billions etc, when they took over, it still took a few seasons (3 or 4 I think) until they were legit competitors for the league and other trophies.