You can either play to your strengths or try to compensate for a weakness. The great Italian sides of the past had their strength in being almost invulnerable at the back, so just had to nick a goal from somewhere. Others like Brazil got through with appalling goalkeepers and average centre backs because they were an irresistible force in attack.
We do not have world class keepers or centre backs, but we are overflowing with quality going forward and at full/wing back we have quality too. Needs a manager who isn't afraid to let the shackles go