It never stops to amaze me that still, a lot of airlines do briefings while taxying out. This time is for LOOKING-OUT in my opinion. Remember that the taxy-phase is a critical flight fase. All briefings should be completed on stand. If you are not able to, it means that you are rushed and thus not in an ideal situation to start a flight.
How many accidents have been caused by the "rushed" factor.
There should be more emphasis on this during CRM, but alas, with some airline's 25min. turnarounds, being rushed has become SOP.
Just my opinion though, and I'm known to be a rebel
