I think he should be kept away from Test cricket for now.
I disagree with that, test cricket is still best place to learn temperament and improve your technique both bowling and batting...You are challanged at different level in test...
Pakistan used to through teenagers in test, Wasim, Waqar, Mushi and many others are example of those cricketers. Shadab did not do bad at all in first test, couple of his spells were mesmerizing in first innings, even better than Yasir, because he actually spins the ball both ways... I am disappointed at management, they showed very little patient with Shadab in test. If he was playing in two test against SL, we would have won both, they would not have scored 450 runs in first innings of both test....