Lies, damned lies and statistics eh? His WIN % with Watford, the only experience that counts, was 37.9%. Even taking his entire managerial career, of the 514 games you mention, the WIN % is only 41.1% (see the Wiki entry). Winning is what counts, no?
https://en.wikipedia.org/wiki/Javi_Gracia
Ignorant is as ignorant does, at least I look at what's relevant experience. Of course, if you think that a winning % of 72.7% with that giant of the footballing world, Al Sadd, is sufficiently significant, that's fine. I'm not so persuaded, as a Leeds supporter that is.
Given our recent history of managerial selections (with of course, one significant success) we have been totally pi55-poor no matter who has owned the club or managed the team and Gracia looks no better. Of course it's a fair question to ask who exactly would be prepared to come in to the current basket case, and for how long, we will see I guess.
Btw., just for context, if you want to take an entire career as a yardstick, over his entire managerial career, Jesse Marsch has a WIN % of 50.15