Wouldn't know if colour is the issue...has anyone confirmed that or is it just hearsay?...it could equally just be results and the fact that coaches eventually have to move on.
At the time Polly was dropped, he had a better bowling record over the previous 12 months then Ntini .... Make of it what you will.
Only marginally so against weaker opposition...but making of it what one wants you could also remember that Pollock was replaced by Morkel knocking on door.
On the other hand de Wet went none-for in 1st innings and got one spell of wickets in second prior to replacing Ntini...and is 28 with a dodgy back which lasted half a game.
You can make stats say anything...but the bottom line is that the team, barring few stand-outs , is not performing and rightly the management ought to be held accountable...get the results and no one cares about quota or no quota.
I posted on another thread a while back that SA only had a few 'real' internationals, with the rest (batsmen mostly) with such basic technical flaws that they usually start off ok, but get exposed by good bowlers who prey on that.
All related to footwork really...think Amla's movement and playing accross stumps, Duminy's back foot, Prince, AB (good eye helping him...no footwork) etc
That is a fundamental issue that needs ironing out right at the start.
A counter example is Hussey...started off brilliantly, went through bad patch but he is able to get out of that because he is a great example of proper footwork...guys without that basic footwork do not get out of slump once exposed unless they change the way they play (Steve Waugh was example).
IMO...they should start by looking at coaching at lower levels....you can only get so far on enthusiasm and national pride.