Arteta insists Arsenal's new-look midfield has 'physical presence' despite criticism

Arteta defends Arsenal's midfield as 'very physical' after claims it lacks steel.
Arteta stands by decision to play Declan Rice and Kai Havertz together in midfield.
Arteta says finding right balance in midfield and giving new players time are key.
Arteta highlights physical attributes Havertz brings and options to adapt playing style.
Arteta yet to decide on new vice-captain, wants clarity before appointing.