I don't know these players, but i think that some of them must be good enough to play even in the best three leagues in Europe.
I mean, the Arabs are talented for football. They have that pure talent that can be seen for example on futsal matches. (dribbling, technique etc).
There is just no fucking way that they don't have players who can be stars of the best teams in Europe one day. If smaller and much more poor countries like Macedonia, Montenegro, Slovakia, Bosnia or Belarus can give players like Pandev, Vucinic, Hamsik, Skrtel, Salihamidzic or Hleb, who play in the best leagues, then i don't see why the Arabs from the Gulf can't do it.
But they must start sending these players to Europe when they're young. The Europeans i named above all left their countries when they were 16,17,18 years old. They would have never been this good if they stayed in their leagues until they were 25,26 or 27.