But remember, they're classed as the best of the teams that haven't scored...
Currently Tim O'Glock is the best driver who hasn't scored. That's probably fair enough - he has a twelfth, one position nearer the points than anyone else has managed, along with a couple of fourteenths. Kovalainen's got a thirteenth and a pair of fourteenths. Petrov has a thirteenth and a fourteenth. Charles Pic hasn't managed anything higher than fifteenth... As far as driver championships go, those rankings make sense - the best three results for those drivers read 12, 14, 14 (average 13.3); 13, 14, 14 (average 13.6); 13, 14, 15 (average 14.0); 15, 15, 16 (average 15.3).
For teams, it doesn't. Those best results for the teams read 12, 14, 14, 15, 15, 16 (average 14.3); 13, 13, 14, 14, 14, 15 (average 13.8). That's part of the point of the FATC thread - if you're taking results of just one car, it's not a team championship. Marussia aren't the 10th place team because they have the 10th best car and the 10th best driver pairing. They're the 10th place team because Tim O'Glock got a good hand for one race and played it.
The Marussia is not a better car than the Caterham and they are not a better team than Caterham, but they're ranked that way because the teams' championship is flawed.