No, they don't have a better DM than Poulsen. Poulsen, if someone didn't come with the idea to make him Juve's playmaker, would have been a very good DM for Juve, just like he was in Schalke and Sevilla, and just like he was on those rare occasions where he had defensive duties without needing to create the play (like on the match vs Milan when his duty was to take care of Kaka). Arsenal have Fabregas to create the play and they need Poulsen only in the defensive department in midfield.
We have 4 people who can play RB (Mellberg, Grygera, Salihamidzic, Zebina). None of them is good enough so we obviously need an improvement there.
But Arsenal not only that they lack DMs but even the one(s) they have are awful and Poulsen is classes better than them.
Maybe it's pushing it to say that they need Poulsen more than we need Eboue, but it's more than fair to say that they need him just as much as we need Eboue and even though i rate Poulsen higher and if i create the prices i'd make him more expensive than Eboue, i'll accept a player for player swap.
The grass isn't always greener on the other side of the fence. Stop overrating other team's players and underrating our players.
I dont really rate Poulsen as a DM, he is def not able to compete with a Sissoko like DM for that spot.
Esp in the EPL, where physicality is a very important issue.
In Spain, even a balerina class Tiago player can be a "washing machine".
Poulsen is quite useful mostly because of his passing and a decent tactical awareness. But already having Fabregas make this extra ability quite useless.
But i dont think that his bulldog skills would be enough to intimidate EPL midfielders!! It is not only a matter of roles, but mostly a matter of strength and stamina! I really really doubt that Poulsen could be a starter in Arsenal, but i am sure that Eboue would be a starter in Juve.
The age and potential of the given players are also very important to Wenger.
Eboue still holds a potential and despite having more and better alternatives, Wenger is aware of his value!
Poulsen has already shown what he is able to do. He is not physical enough to play successfully in the EPL and his age wont allow him to improve much.
He can easily found a dozen of Dagostinos or even better Asamoahs if he wants to. But we can hardly come up with an Eboue. I still believe that we need him more than they need Poulsen.