I rate this kid very highly as a driver.
His time will come.
These seasons in 'dogs' will be put to good use when he does get a better car.
If you go back and review F1 'test' drivers....with the exception of Luca Badoer, they usually end up being really quick. They're also less prone to making mistakes.
There seems to be something about going from a poorly handling car...where you're 'fighting' all the time, to actually being able to concentrate on driving in a very good one.
Alonso is a good example.
Once he got out of that Minardi testing, he drove the wheel off of everything else...until he got bored and his personality got him in trouble.