I mean, yes England fans usually have WAY too high of expectations, I think now that the "Golden Generation" (Gerrard, Lampard, Terry, Ferdinand, etc) are getting older, and after seeing how poorly they have performed, the expectations for this tournament have dropped.
And they aren't the best England has to offer.
Downing is the only person of them you would consider a starter for England. Even then, you could argue that Adam Johnson could play his left wing role, or Ashley Young if you took him out of that central role and brought someone else up. And after a string of good performances from The Ox, I wouldn't be surprised if he lost his spot to him.
All the others were brought into the squad to be subs or after injuries.
Carroll was picked for backup while Rooney was suspended.
Henderson was picked after Lampard got injured. Barry or Wilshere would have been picked over him if they weren't injured. Carrick too, if he didn't "retire" when he found out he wasn't in Hodgson's first squad. He'll just be used to back up Gerrard and Parker, as he should be.
Kelly was picked after Cahill got injured, and is the only one of the four I don't entirely agree with the choice to select. I think Micah Richards should have been in the first team in the first place, or even Walker. I like Kelly, I think he's a great young talent with a lot of potential, but Richards should have got the call.