And BBC Sport understands that Craig Brewster, Terry Butcher, Joe Miller, Allan Moore and Bobby Williamson are among the leading contenders to take over at Almondvale.
If he faces Spain the 33-year-old will match Bobby Moore's milestone of 108 caps for an England outfield player.
Bobby Moore, from the Unite union, said relations between his organisation and the department have taken a turn for the worse.
He shares the record of three with Bobby Moore and Peter Shilton.
Alongside Charles on the new stamp collection are Kevin Keegan, Bobby Charlton, Bryan Robson, John Barnes, Gordon Banks, Jimmy Greaves, Denis Law, Dave Mackay, Bobby Moore and George Best.
David Beckham's revitalised form on loan at AC Milan has won him inclusion in Capello's squad and put him on the brink of a 108th cap that would equal Bobby Moore's outfield appearance landmark.
Bobby Moore's widow Stephanie, who set up a fund for bowel cancer research in memory of England's World Cup-winning captain, who died of the disease aged 51, said she hoped the campaign would save thousands of lives.
The West Ham striker equalised an early West German goal when he head home Bobby Moore's free-kick - but the real drama came after the game on 30 July went into extra-time with the score locked at 2-2.
"Of the hundreds of defenders who played against me during my career I pick Bobby Moore as the greatest of them all, " the FA website quoted Pele, the only player to have won three World Cup trophies, as saying.
" Adds Gary Michael Walters, who produced the 2006 Kennedy film Bobby, which featured producer-actresses Demi Moore and Sharon Stone: "Producing gives business-minded actors the ability to create vehicles that are perfectly matched to their talent and their sensibilities.
"It was Bobby's ultimate goal to play for England, " Moore's wife Stephane told the English FA's website.
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