Does Zaheer Khan deserves to be a good bowler?

Zaheer surely deserves the leading bowler position in indian team. He has really worked hard in the past and even in this series. He has come back greatly after the recent injury. No doubt, he is really a good bowler, and has taken many valuable wickets, when India really needed a bowler like him. The fact that his misfield caused the defeat in the match, doesnt mean that he is not a good bowler. It simply means he is not a good fielder, and a lot of bowling has made his shoulders hurt, which makes him not able to throw the ball normally. The same thing happened with srinath before he got retired, he was also doing underarm throws from the long on and long off. So cant really blame a bowler for one mistake in one innings, or one match.