manchester united travel to the usa 's west coast for the pre-season tour .
louis van gaal was unhappy with last year 's arrangements in america .
the dutch manager has organised the pre-season plans to his liking .
he will face his former club barcelona in california during the tour .
van gaal was barca boss between 1997 and 2000 , and won la liga twice .
he left in controversial circumstances after an icy relationship with media .
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