"When Titans Become Outsiders" from Outsiders vol.3 #46 (DC, 2007) by Judd Winick, Carlo Barberi, Art Thibert and Steve Bird
The Outsiders of the late 2000s lasted 50 issues, but that would seem to be thanks to a couple Titans joining the team - Nightwing, Arsenal and Starfire. I mean, you weren't tuning in for Katana or (I'm going to write names of people I don't know here) Shift or Indigo or Grace or Thunder! Were you? Maybe you were. Who am I to say that's wrong?