Who should replace Duminy?

The first test match between South Africa and Australia ended in a draw with neither side dominating the other. Michael Clarke's 259 not out off 398 balls was brilliant. The Proteas need to work on their bowling against the Australian Batsmen. An even more pressing matter though is with whom they should replace JP Duminy with.

There are two test matches left, the next one only starting on the 22nd of November. For me Rory Kleinveldt is not a great test bowler, he didn't prove it either in the match. The Proteas should replace him with a spinner. Maybe Imran Tahir, or another person perhaps.

I am certain that selectors will consider Francois du Plessis and Dean Elgar as suitable replacements for Duminy. They are both good batsmen and can bowl part-time spin. However for me, du Plessis has failed too many times in the international arena and I think he should not be given another chance. Elgar is definitely a good option. 

According to espncricinfo.com he has scored 5326 runs in first class cricket at an average of 44.75. So he's quite good.

Dean Elgar (25) Picture taken from the Gauteng Cricket Board website

For me though. I think David Miller should be given a chance. He's proven he can play very well in limited over competitions and has done so in international games. He was brilliant in the Hong Kong sixes, which the  South African team actually won this year. He outshone captain Colin Ingram in a few of the HK6s games. 
Though his statistics are not as impressive, they are ever improving and I think he is becoming one of the best batsment in south africa.

David Miller (23) Picture taken from the Gauteng Cricket Board website