When motivated Ade is fairly hard working, I agree. And I've spent a lot of time defending him on here.
However, Ade isn't really dependable or diligent. It's difficult to trust that Ade will do his job every time and his defensive work when hard seems to me a bit random and scattered. If Poch wants to implement a Bielsa style high pressing game similar to Atletico Madrid or Dortmund for example he needs every player to work in that system consistently. The team has to work as a unit, and every player has to trust other players to do the work every time. It's perhaps less important for the lone striker in the 4-2-3-1 than for midfielders and defenders, but as Schneiderlin (I think) correctly pointed out in one of his interviews it's the striker(s) that should initiate the high pressing, that then brings the rest of the team up the pitch after them. Having a striker that's diligent and dependable, predictable and tactically astute is important.
If Ade can adapt that would be fantastic. If he can't perhaps Poch can do what Barcelona does with Messi and more or less give one player the freedom to defend more or less when he feels like it how he feels like it and it will be worth it... But Ade is a concern, one I'm quite sure both Poch and Baldini are pondering.