There are plenty of happy moments in tonight's episode, relative to the recent episodes. Finally, Derek and Merideth are back to happy days as well as Owen and Christina. I liked how Callie finally made her stand with regards to Mark and Arizona. The emphasis on the 5th year residents' option to go for 'safe' was also nicely played. The operations that Derek and Callie performed tonight showed that you'll never be great once you start playing 'safe'.
Kevin Mckidd did a good job directing the episode tonight. Congratulations!