Mislintat spent just 14 months at Arsenal and oversaw several key transfers during his time at the club, most notably the arrivals of Pierre-Emerick Aubameyang, Bernd Leno, Lucas Torreira and Matteo Guendouzi.
But Mislintat, who was nicknamed Diamond Eye in Germany after his series of shrewd signings for Borussia Dortmund, became disillusioned at Arsenal and had several disagreements with the clubs head of football Raul Sanllehi.
According to The Sunday Times, Mislintat was also dismayed by Emerys insistence on signing Suarez from Barcelona as he had earmarked two Arsenal academy players to challenge for the position on the right flank instead.
Mislintat is said to have urged Emery to give more chances to Joe Willock and Bukayo Saka, but the Arsenal boss overruled the German and pushed to complete the loan deal for Suarez.
The Spaniard had played under Emery at Sevilla and the pair won the Europa League together in 2015.