>>80087608Actually it's confirmed that Waller (and Marc Ceccarelli) didn't replace Tibbit until season 10.
there's also a completely different batch of writers working on post-movie season 9 than the between movie seasons
Pre-movie season 9 has Casey Alexander (writer for seasons 4-9, currently works at Uncle Grandpa), Luke Brookshire (writer for seasons 4-9, currently works at Uncle Grandpa), Zeus Cervas (seasons 4-9, has since done stuff for Clarence, Harvey Beaks, Uncle Grandpa, and Star Vs), Derek Iversen (seasons 6-9, currently works at sanjay and craig), Mr. Lawrence (seasons 1-2, 7-9, currently writing for Mighty Magiswords), Marc Ceccarelli (seasons 8-9, has also worked on UG), and Blake Lemons (just pre-movie season 9, currently works on Sanjay and Craig)
Meanwhile post-movie season 9 has Jack Pendarvis (writer for Adventure Time since mid season 5), Kyle McCulloch (south park), and Kaz (old spongebob writer)