Even with Guardiola, Ancelotti or Mourinho, the investment just to replace Sanchez, Ozil, Cazorla, Cech and Kos is more than Kroenke is willing to spend.
The investment needed in every position would be too much for an owner that has never spent any of his own money to invest in the club.
More importantly, Kroenke couldn’t care less about us winning the PL title.
The only thing he considers important is profit, and he is making a fortune out of the supporters, and there are still enough of them that believe Wenger is the right man for the job and that we are ok.
There is more chance of us finishing mid table than winning the PL or CL.