Inspired by Knock-on's comment about Schumacher being one of the worst performing team-mates over the last 3 years, I decided to look up the championship points tables and work out just who have been the tardiest team-mates in that period. Each line shows the name of the driver, the team-mate they were beaten by, their team and their championship points score as a % of their team-mate's score.
Italics indicate scores that are less statistically valid because both drivers had 2 or fewer points scores, or both scored less than 10 points in total. And the unquantifiable bottom 3 teams are omitted.
2010:
2011:Code:1 Petrov (Kubica, Renault) 20%
2 De La Rosa (Kobayashi, Sauber) 29%
3 Liuzzi (Sutil, Force India) 45%
4 Hulkenberg (Barrichello, Williams) 47%
5 Schumacher (Rosberg, Mercedes) 51%
2012 (so far):Code:1 De La Rosa (Kobayashi, Sauber) 0%
2 Maldonado (Barrichello, Williams) 25%
3 Senna (Petrov, Renault) 40%
4 Massa (Alonso, Ferrari) 46%
5 Buemi (Alguersuari, Torro Rosso) 58%
Schumacher does indeed make the top 5 worst team-mates in 2 years out of 3. Statistically Massa looks like he comes out even worse: if you ignore the "statistically invalid" entries in 2011 he's topping the table. However you might consider Alonso to be a more testing standard to measure against than Rosberg.Code:1 D'Ambrosio (Raikkonen, Renault) 0%
2 Massa (Alonso, Ferrari) 36%
3 Schumacher (Rosberg, Mercedes) 46%
4 Grosjean (Raikkonen, Renault) 56%
5 Webber (Vettel, Red Bull) 71%
In 2012, Grosjean's score is surprisingly decent for a guy who crashes or gets banned every other race.
Finally looking at the top 4 teams, who have all had stable driver pairings, over the 3 years:
Code:1 Massa (Alonso, Ferrari) 47%
2 Schumacher (Rosberg, Mercedes) 59%
3 Webber (Vettel, Red Bull) 76%
4 Button (Hamilton, McLaren) 99%