Well, they didn't follow my advice, did they?
I said that they should start on primes, of course as it turned out Jenson pretty-much did, running only 4 laps on the options. The problem was, after replacing the wing he was some 40 seconds down. Ricciardo was the only one to actually start on primes, and it wasn't a bad choice at all. He lost one or 2 places to faster cars on options, but gained them all back (and more) when those cars pitted.
Running in the mid-field with options was not really a good idea, even without the collision it was going to be hard to make progress without wearing out the tyres very quickly. In a McLaren, you don't go sailing past other cars, even when the other car is a Williams.
Jenson didn't have a very good setup for overtaking, but it turned out he had a reasonable setup for defending. Perez had more straight-line speed, but I didn't see him gaining many places on the track. And after just 10 laps, he was in the pits for primes.
More by luck than anything, McLaren are pulling a reasonable gap to Force India. But I don't feel that the strategy is helping very much, although it was a good move to leave Jenson out on old tyres instead of pitting him under the safety car. Without the second safety car, though, I suspect it might not have turned out quite so well.