Pixar might be big, but Pixar doesn't have 200 projects going at once. Pixar's approach, at least based on the documentary and personal observation, is very lean in theory which seems to work well. They do movies. One or 2 at a time. Thats it. Disney has so many projects and ventures, from their own theme parks to television to all these other things. It seems that at Disney authority and direction trickles down through so many people that it takes effort just to get the right people onboard and agree on a project, never mind make projects you want to see made.