Tbh if I was could choose to take over one team from the premier league it would be Arsenal, it honestly is the easiest job there is. The holes in there squad are obvious and the board don't have any expectations of you.
Its obvious there missing a CB thats a proper leader, a centre mid who isn't afraid to put there body on the line and a box to box midfielder.
Bonucci would've been perfect for Arsenal as the CB and Fabinho/Matuidi. Bonucci/Matuidi are getting up there in age however they would put Arsenal in a win now situation which is exactly what they need.
------------------------Cech-----------------------
Bellerin-----Koscielny-----Bonucci----Kolasinac
----------------------Fabinho----------------------
---------------Matuidi-------Ramsey-------------
Ox---------------Lacazette---------------Sanchez
While I dont really rate Ox, I would have him in there purely for his ability to help out Bellerin who's defending is questionable.
Ozil wouldn't get in my team because he simply doesn't put out the type of effort that a team like Arsenal needs, its not Real Madrid where you can carry players.
Bonucci would be the leader they've been crying out for and Fabinho and Matuidi would bring the energy in the midfield. Also something that also benefit the rest of the team would be the winning mentality those players would bring considering all 3 of them have won titles at other clubs.