Frustrated at South Africa 's racial quota system , Pietersen left for England .
Frustrated at South Africa 's racial quota system , Pietersen ended up at Nottinghamshire in 2001 where he averaged almost 60 with the bat in his first season .
Frustrated at South Africa 's racial quota system , Pietersen left for England and ended up at Nottinghamshire in 2001 where he averaged almost 60 with the bat in his first season .