I've seen what Mikel Arteta is capable of at Arsenal - why throw it all away for Barcelona?

Mikel Arteta has been linked with the Barcelona job after Xavi announced he would be standing down t the end of the season, but throwing away Arsenal process makes no sense

I've seen what Mikel Arteta is capable of at Arsenal - why throw it all away for Barcelona?
Mikel Arteta has been linked with the Barcelona job after Xavi announced he would be standing down t the end of the season, but throwing away Arsenal process makes no sense