No, you should sack the manager when he's lost the plot, is clearly incapable of learning from his past mistakes, makes painful mistakes a 3 year old child wouldn't make and has slowly dismantled the squad from one of if not the best in the world to pretty god damned rubbish(in terms of top 4 quality).
This is why I wanted Wenger gone 4-5 years ago, his reign of terror had begun, when someone drops Gilberto(still the best DM in the business up till 2 years ago) for Denilson.......... you should send the manager to check he hasn't had a stroke. When you start letting Pires and Reyes go, and drop them for a champs league final to start then keep Hleb on the pitch....
Walcott, fine people thought he was good, years ago it was obvious he was dog****, so did we drop him, no, 60k a week new contract.... while being incapable of doing the job he's asked to do.
Diaby, another year, another 3 mil down the drain on a player who is no where near good enough when fit..... and he's never fit, it goes on and on.
The squad we had 6 years ago was unbelievable, every single player just about was worthy of a team in the top 4, from first team to the second backup. Now, about 3 members of the first team deserve to be at a top 4 squad. RVP, Wilshire, Verm, and we've turned two of those into sicknotes through horrific handling of their injuries...... something again we haven't changed our stance on for a decade now.
Wilshire screwed his ankle at the END OF LAST SEASON, and like so many other players our complex plan of treatment involved, ignoring it till preseason, playing Wilshire in just about every game till he fractured his ankle, even then it took a month and a relapse to really decide to treat it as it should have been done 6 months earlier.
Top 4 has NOTHING to do with it, couldn't give a monkeys about it, the football we're playing compared to even 3 years ago is night and day, the squad quality is laughable, the players he's buying are laughably bad for the most part, he's abandoned EVERYTHING that made Arsenal successful in his first 7-8 years with Arsenal, every last thing. 4-4-2, gone, all out attack, gone, solid defence, gone, getting rid of good players to bring in better players, gone, not putting up with dross or stupid wage demands, gone.