Originally Posted by jens
In my view Heidfeld is clearly the best option among available and interested (Kimi is not interested) drivers and I am surprised, how some can be downplaying him. Actually he is the only driver, who even remotely could step into the big boots left by Kubica and lead the team, which seems close to the top. Nick always manages to collect a good amount of points and this is what the team badly needs. And generally Heidfeld is a really adequate lead driver for an up-and-coming team like for instance Button was for BAR. Or Nick himself was in 2006-07 for BMW.
Others seem already a singificant step backwards. Alas I see Bahar, Lopez and Bouiller giving Bruno Senna the shot. Tying "JPS Lotus" with the name Senna would be too tempting. It can be argued that Bruno has probably more potential than it was evident during HRT days, but at best I'd expect him to turn out to be marginally better than Petrov, which isn't saying much. I actually believe Grosjean has more potential than Senna, but I have to admit he is a risky bet too.
I see more names having been thrown in here. Klien? De la Rosa? Liuzzi? Fisichella? Davidson? None is as good as Heidfeld, but if the situation is tight, they could be considered. Mainly for their experience (which the team seems to be seriously lacking at the moment) and also as a benchmark for Petrov.
Hülkenberg is a gamble too, he got a serious beating by Barrichello last year. But I think he could be more ready to produce results from the get-go than any of Renault's reserves. Still, I don't see him getting released from Force India's contract. And if people here are already talking about contracted drivers, Glock sounds like a decent option to me (Virgin's contract shouldn't be that expensive to buy out either) for damage limitation.
What seems important in all of this, is that the replacement driver seems to be needed for at least the whole season. If it was for a couple of races, you may expect someone like Heidfeld not to be too interested to be a seat-warmer for Kubica without having the opportunity to fully settle in and have a season-long impact. And the team could afford a rookie to flop (two bad races from the team don't ruin the whole season). But an experienced driver seems now vital in the long-run. Because if a rookie flops, it will be even more complicated to make a mid-season change due to in-season testing ban.