^Just got on a new "one-minute-manager" kick - and wondered
  where else people use it (the compliment / criticize /
  compliment sandwhich) Found out that, it is an extremely common
  technique used in Youth Sports, from football to martial arts.
  "That was great how you ran right to the ball" (compliment) "but
  you bring your left arm in just before you can catch the ball,
  and you drop it every time. did you ever notice how you do
  that?" (wait for genuine agreement - if you don't get it, you
  mimic the incorrect motion until there's genuine agreement) "but
  i really love your intensity - you keep your eyes on the ball
  the whole time - keep it up!" (compliment) "Want me to show you
  another way to do it?" (waits for agreement) (shows how). There
  you see a complement sandwhich - and then the Coaching takes
  place. When a coach just shoots straight to the criticism, some
  players mentally shut down and only pretend to go along with the
  Coaching that follows, but because the Coaching is mentally
  associated with a negative thing (Criticism alone) - the lesson
  doesn't sink in as quickly. If the coach does a Complement
  sandwhich (complement, criticism, complement) then coaching -
  the player stays in a positive, enthusiastic mood, more apt to
  learn. Man, I was told years ago I should be a "coach's coach" a
  "teacher's teacher" back in my mid 20's - maybe THAT'S what I
  should write about. I'm not a leader - can't lead groups - but i
  wouldn't mind being the 'Meta-Teacher - teacher's teacher".
  "Those who cannot do, teach"...^