package Synergy;

use Module::Pluggable instantiate => 'new';

sub new {
 my ($class, @opts) = @_;
 return bless [ $class->plugins(@opts) ], $class;
 # now your object contains objects of classes A, B, C, D
 # and whatever else was in Synergy/*.pm near Synergy.pm
}

sub process {
 my ($self, @args) = @_;
 return map { $_->process(@args) } @$self;
 # passes args to all sub-modules
}