Players appear gash because of the manager, put a manager in place that wants to play actual football and have some possession winning the ball higher up the pitch rather than give up possession on purpose and sit in to counter attack.
To move forward in this day and age you need to have the ability to keep possession and press affectively, if our tactic is what we saw against Arsenal most PL teams will do the same, that sort of tactical style is so far out dated.
For me Dyche needs binning and start talking to managers like Galtier and Gallardo, there are plenty other quality coaches out there as well, try and convince them this takeover is the big reset button. Coaches like Dyche, Allardyce and Benitez have had their day and unless they change or evolve they will continue to be unsuccessful, all of which are stubborn so they will not change.