Sam Allardyce has made provisional plans to draft in at least six new players before the World Cup begins on June 9.
The Bolton manager aims to beef up his squad in double quick time should they have to settle for a place in the Intertoto Cup.
England's representatives will open their campaign in the third round with the first of the two legs on July 15.
That is just six days after the World Cup final in Germany and the prize on offer for the winners is a UEFA Cup slot.
Allardyce said: 'When the World Cup is on, it is a complete waste of time trying to find players.
'We have to get as many in before it starts if we are in the Intertoto.
'The restructuring of the Intertoto means it is much more comfortable to enter.
'If we want to progress in the tournament we can only do it if we have a strong squad available when we start back in July.
'There is no point competing in the Intertoto if we are forced to use youth team players like we did last year when we went to Thailand.
'It is important to introduce new players into the side as quickly as possible.'
Allardyce is still hoping to clinch a place in the UEFA Cup through their league placing for a second successive season.
Bolton amassed a club-record 58 points in the Barclays Premiership last season when they finished sixth and that tally could still be overtaken despite a poor run.
They are on 49 points with four games remaining, starting with a home fixture against Charlton tomorrow.
Bolton go into the match with renewed confidence after ending a five-match losing sequence with a goalless draw at West Brom.
Allardyce said: 'We have to try and break that 58-point mark if we can and hopefully that will get us a UEFA Cup place.
'We need to gain a victory against Charlton to get our home form back on track.
'It really is a big match on Saturday for us and we will have to be at the top end of our game.'