Proteas bowling is to blame

Our problem lies in our bowling department. Donald was a great player, but I don't think he is a good coach. Not once since he has been appointed has he came up with a good bowling tactic. It always seems to backfire, and in test matches, the coaching staff always figure out where to bowl on day 5 of the match, while we can sit on our couches and figure it out on day 1. How can we not learn to bowl yorkers? People say it's too predictable - you are right. It is predictable...but what are you going to do about it? Nothing. Cause there is nothing you can do. Just look at the death bowling of Sri Lanka in the final, with a well-set Kholi, and 'best-finisher' Dhoni.