Sachin tendulkar, Indian batting master has lot of cricket left.He couldnot perform according to his name in challenger , but that dont write off his potential.He came back from a long injury, Tennis elbow . He need time to sattle down .Who have watch him playing in challenger , might observe it that in first game he is caught behind to a outswinging beauty of balaji. he couldnot do much in second .But remember in third match he hit glorious boundries. that clear’s he has still the fire in him.What he need is match practice a bit time to accomodate in that level.
If you see the past of Indian cricket you will find people started saying the same about Mohinder amarnath and Sunil Gawasker. Everybody know they came back with bang.
One more thing is sachin is a great improviser of the game , He started as a middle order , become a great opner , and effective leg break bowler .So give him time to adjust his game as per need It is early to say , he is spent
In 16 year scoring almost 20000 runs near about 70 centuries is not a joke .A few player could reach at this level.Therefore One can not rate such aplayer on mere three games. So wait for the home series againest Sri Lanka and South Africa , Every one will find there answer .That will be write time to start thinking about that Till then let’s wait for sachin’s bat to answer.