Moyes isn't an idiot. He knows those 'A-team players' he rested need a compettive game before the final...and he wont want to sign off on a defeat going into it.
2008-2009 season
our final game was away to fulham, we won 2-0. This was 6 days before the FA Cup final v Chelsea
this is the team we played against fulham
Saha - started the fa cup final
Cahill - started the fa cup final
Pienaar - started the fa cup final
Osman - started the fa cup final
Rodwell
Neville - started the fa cup final
Baines - started the fa cup final
Lescott - started the fa cup final
Yobo - started the fa cup final
Hibbert - started the fa cup final
Howard - started the fa cup final
he played our strongest team in the last game v fulham bar Fellaini
no way will it be a weak west ham side v Leicester