They want the team to win and Tuchel isnt winning with the team so yeah decision was taken. Considering that it was only 5 games at the start of the season, it was actually a bold decision that the board made. Probably something to do with some other outfield issue otherwise I dont really see why they would just sacked him though
If the owner of club didn't feel satisfied with the performance from the club and yeah the owner wil be blaming the manager for that. In my opinion if this is happening with so many clubs other than chelsea. I can't deny the fact that if this time chelsea in a horrible peformance. In my opinion if graham can't make chelsea to get the best performance and he will become the next manager that will be sacked again very soon. im feeling doubt if graham can bring chelsea to the its best performance again. In my opinion if tuchel knows everything more than graham