To answer your question, yes. I illustrated the lined frames first. Then I handed the unfinished frames to Mike along with temporary color frames (the result is the same as how unfinished frames look in the Beta). This allowed him to implement the frames, show them to the rest of the team, then provide me with feedback on the quality of the frames. Once they were deemed good enough, I would then clean up the lined frames. I then created the color and shade frames that coincide with each lined frame.
Long story short, each frame consists of a line, color, and shade cel. I illustrated all three cels for each new frame that I created.