it does.............BUT, as it concentrates on more than 1 team it compromises tyre decisions!
tgf/ferrari and bridgestone took a dominant win at spain....but, he/they had 2 tyre constructions developed totally around his liking and his ferrari, he was never going to lose!
both williams and mclaren wanted a different tyre construction at spain, which they got, but that construction was the only choice they each had, they was no saying to michelin, we don't like this 1 can we try the other as it had been designed for the other team!