I personally think that for every position on the field you would ideally like 2 players that are upto standard in that particular position yes? (The exception of goalkeepers, where you would take 3).
Goalkeepers - David James, Robert Green and Joe Hart in my opinion (best english goalkeeper in the premier league so far at a mediocre club?)
Right back - Glen Johnson, Micah Richards.
Centre backs - John Terry, Rio Ferdinand, Matt Upson and Joleon Lescott.
Left backs - Wayne Bridge, Ashley Cole.
(Taking into account the fact Lescott and Richards can be deployed either wide or in the middle, allowing extra variety.)
Right midfield - Aaron Lennon, Theo Walcott
Centre midfield - Steven Gerrard, Frank Lampard, Gareth Barry and......................Goldenballs
(At the end of the day, like said above, you need a different game plan, 1-0 down, who do you bring on? Someone who can change the game like a certain someone did against Belarus, or Michael Carrick, Jermain Jenas or the like?)
Left midfield - James Milner and Joe Cole
(Beckham, Cole and Gerrard can also be deployed anywhere across the midfield effectively)
Strikers - Wayne Rooney, Jermaine Defoe, Peter Crouch.....and as much as it pains me to say it, Emile Heskey...At the end of the day if the team is playing well and winning with him in it, why change it?
That leaves my final 23 on the plane to South Africa, and also justifies the decision to take Becks!