tehsin nayani spent six years as spokesman for the glazer family .
his new book , the glazer gatekeeper , tells all about his time in the job .
nayani insists that the glazer takeover was always a long-term project .
sir alex ferguson used to invite the owners into the home dressing room .
nayani believes the red knights consortium were never serious suitors .
the glazers are not ` ogres ' despite fan opinion , according to nayani .