This is why teams and drivers employ proper managers who don't get hysterical after a couple of weekends. So called 'fans' are always swift with an emotional response to get rid of a driver, when the correct answer should be to question which driver could deliver a better outcome in the same machinery.
Vettel's a very good driver who's still got some learning to come. He definitely has quite a few limitations but given the right equipment and circumstances he can work around them very effectively. His errors this year have appeared laughable, as they're magnified by him competing at the front and they've been repeated, but he's clearly very competent and, at times, brilliant.
Ferrari clung on to Massa for years but now are suggesting that Vettel should be sacked off after two poor half seasons? Right...
The best way to answer it is to test it with young drivers - Sebastian is way after his prime at this age of 31, with last title five years ago, and with four unsuccessful years with Ferrari already.
Most managers are very incompetent and their employees suffer with different problems, so...
Ferrari should give the seats to young drivers with the future in front of them, not to old dogs with history