I was very disappointed to see Vettel on pole. We had such a good fight in Q3, but then Vettel just showed up and cruised to pole like he wasn't even trying. It just didn't feel fail.
With Red Bull changing 70% of their car for Valencia, I did have one idea on how the FIA could keep costs down - a limit on the total number of parts that can be changed on the car over the course of the season. The teams would be free to change those parts whenever they saw fit, provided they did not go over the limit. Furthermore, if they put a part on, find it does not work, and so replace it with another part, it only counts as one change (so as not to punish teams who develop upgrades that don't work).