I usually don't really care and open the same way regardless. Warriors in general are not as reliant on trinkets proccing instantly as classes who are focused on extreme burst-windows, e.g. enhancement shamans, affliction warlocks, BM hunters.
If you really want to minmax it and time with trinkets, open with a bloodthirst, leave one global open and use one raging blow, then pop your cooldowns on the next bloodthirst and continue as per usual.