Spot on or not on?

Well Cricinfo (Siddhartha Vaidyanathan, actually)has rated Karthik above Dhoni and Tendulkar. But for the catching, even I may have marked Karthik higher. And they also seem to appreciate Jaffer more than I have. And clearly they have been swayed by the role that he played in building a foundation from where Ganguly, Sachin & co pushed on. However, I really felt that on a couple of occasions, Jaffer was guilty of giving it away when well set, playing irresponsible shots. Jaffer has a wealth of experience playing cricket, even though not at the highest level, and is well known for the tenacity with which he builds huge knocks. In my book, he did not pull his weight. In fact, I may have forgiven him easier had he perished more without getting set (like at the Oval). Anyway, getting starts is not such a huge flaw.
This is exactly the reason why both Sehwag and Gambhir are essential in the frame of things. Both Jaffer and Karthik need to be on their toes, and they need to know that despite a historic series victory, the opening spots are not theirs forever. They need to continue justifying their spots in the team - as specialist openers.