Listen to Emmanuel Petit, David Dein and Lee Dixon during a special programme, Arsene at 60, on BBC Radio 5 live at 2000 BST on Thursday.
I wonder what Dein will have to say. He has had a complex relationship with Wenger, being responsible for his arrival but his business dealings clashed with Wenger's philosophy of developing low budget talent.
Here is a bit by the Beeb.
" Wenger has not only changed Arsenal - it is widely accepted that his approach to scouting, training, nutrition and statistical analysis encouraged English football to embrace the continental approach to management."
But for Emmanuel Petit, coached by Wenger at Monaco and Arsenal, it is his former mentor's man management which makes him so special.