PSG striker Julian Draxler admits he struggled to work with Arsenal boss Unai Emery.
The Germany international had six months with Emery in charge of PSG before the Spaniard left.
Emery has been accused of failing to convince the cosmopolitan Gunners' squad of his tactics.
And speculation has mounted some star names will consider leaving because of worries over their manager's cautious approach.
Draxler, 26, said of having a native-speaking coach: "Under Unai Emery, I realised that playing abroad was different.
"I consider him a very good coach, but with him the communication was sometimes not that easy.
"When you talk to Thomas (Tuchel) and he clearly tells you in two sentences in German what is good and what is not good, that is certainly an advantage."
