Sale needs to continue to pitch because he has a lot to learn.
He's very talented, but he needs to learn to concentrate on making a good pitch every time he throws the ball because that pitch can be the difference in the ballgame. (See the first home run he allowed last night.)
Sale also needs to learn to control his emotions on the mound. His act, perhaps picked up from Peavy, of visibly getting mad after making a mistake is getting old. It only compounds the original mistake. (See the second home run he allowed last night.)