There's been a lot of friction in Zimbabwean cricketing circles over "black quotas" in team selection. I believe that an "affirmative action" policy is important for the long-term development of the game in Zimbabwe. It's a pity that the ZCU is not being open and transparent about its motives.
It is clear that there has been a lot of dissatisfaction among some of the country's leading white players in recent years. Murray Goodwin stated it in a rather unsubtle fashion the other day when he said that black players were getting a "free ride" into the team without having to "perform as well as the European guys to get a game". (It looks like he's in trouble with the WACA over those comments, and I wouldn't be surprised if the Sussex CCC, his northern hemisphere employer, has words to him as well.)