Bowlers averaging 30 should be discarded, broad for one should be the first to go because he is highly inconsistent.If england want to be a dominating test team they need 2 consistent bowlers that average less or around the 25 mark to support anderson that will also help anderson because i can imagine what anderson feels going into a test match with bresnan and broad as the support bowlers.They should play finn and tremlett and also invest in another youngster.