Fair play to Vieira, I had Palace down as relegation fodder when he took over. The scenario seemed a bit dire at the time, from afar he hadn't exactly set the world alight in France and seeing the turnover of players in the Summer it just seemed logical, but he's performed really well and midtable is a good position for Palace. The result against Arsenal a really good one that could help them end the season on a high.
The rebuild will be interesting, especially if they lose Zaha, but we'll see how it goes.
Any talk of Vieira at Arsenal is completely premature though, not proven at all.