And the alternative was what exactly? Keep Slav on, blow the budget, gamble on making the play offs winning the play offs, and the risk graph and plan of what to do should we fail, spend more in the summer?
The obvious thing, apparent to everyone is, not one player in the squad has improved with Slavs coaching, no one has increased their technical skills, their positional sense, their effort or commitment.
You can rant and rave as much as you want, it won't turn the clock back or have any guarantees that what you want will work, the choice is black and white, support the team, enjoy going to the Lane and seeing your mates, or stop going.