If you have three bowlers of similar quality though, and two have just failed miserably while the other wasn't given a go, you'd logicially go for the third.
'Failed miserably' seems quite dramatic, and if anything, its probably logical to give these two a extended period in the team knowing that potential is there.
As for you Richard, consdiering I am from Australia, I am making comparisons, and thinking about it, its not just Australia whose stuck with the same squad and key players for an extended period of time. And for someone who advocates Read, its intersting that you sway that way with your argument.
As for point 3, yes it is a simplistic way to look at things, but analysing England's situation requires that. Overall, Giles is more capable than Monty wouldn't you say (you know where 'm going with this).
Also, I wold like to see you starting XI - with consideration to injuries. In fact, I wouldn't mind seeing two teams by you; one from the designated squad and one of your own concoction - I can already envision names like Ufzaal, Masca, and co in the XI.