Looking at George's plan, episode 1 had to do too much. For one, obi-wan shouldn't be in the film nearly as much as he is, he detracts from the rest of the story. The politics of star wars aren't explained unless you want to read 50 different pieces of media when they should have been explained in film, Qui-Gon needed more screen time as his relationship with the council and being the ideal father figure for Anakin aren't ideas that are well developed.