Not sure batsmen ever "just stretch their legs", Collingwood (29no and 8) should have batted three both innings and Morgan probably four (DNB and 6) because they are likely to be called upon should a batsman get injured.
The bowlers were more or less auditioning to replace Broad, sadly none of the three seamers did much (one wicket between them) and I fear England will see Bresnan as like for like
COUNTY AVERAGES 2010
Tremlett (LVCC2) : 230 runs @ 20.90 & 48 wkts @ 20.18
Shahzad (LVCC1) : 238 runs @ 26.44 & 34 wkts @ 29.79
Bresnan (LVCC1) : 203 runs @ 25.37 & 17 wkts @ 31.64
Tremlett is way ahead on wickets, if you factor in the theoretical comparitive weakness of LVCC2 to LVCC1 then I'd say he's still ahead on averages - and don't forget his home ground is now the Oval. But I think England may opt for the more recent Test player, and the theoretical stronger batsman (Bresnan) While we are playing six batsmen and a keeper, they still love to bat all the way down. I think England would have done much better in 06/07 if they'd dropped Anderson or Mahmood and gone with the extra batsman. We may not have won the series, but I think we might have fared better and maybe salvaged one draw with Flintoff at seven with less batting responsibility and the keeper debate marginalised as their role would have been lessened with the bat.
I maintained back then that playing four bowlers would make way for Read to play, what a lot of people want (and some never seem to let go of), but while Flintoff was batting six then the keeper had to be able to bat. What always made me laugh about the pro Read brigade was they said the keeper should be picked on keeping ability, but still pointed out his county batting average!
