Nando did 2 years at Renault, then should have won in 2010 and again this year probably if he hadn't moved over on Kimi in Suzuka and had been faster relative to Massa at the end. That's infinitely better than a succession of 2/3/4th
Yes of course it remains to be seen. But McLaren are probably as good as they can be, and it's not quite good enough to WIN.
You make it sound like it's entirely Alonso's fault that he didn't win in 2010, when actually the Ferrari team threw it away with their pit strategy in Abu Dhabi. So apparently when McLaren mess up, that's a reason for Lewis to not be able to win the WDC, but it doesn't apply to Ferrari and Alonso?
To win the WDC, you need speed, reliability, good pitwall and luck, or at least better than the opposition.